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	Problème avec rapport point, prix...		2005-09-08
		Nico pose la question : Le prix d'un diamant est proportionnel au carré de son poinds. Un diamant de 0.45 g vaut 7500euros. 1. Combie coute un diamant de 0.693 g ? 2. Quel est le poids d'une diamant valant 45000 euros ? Je vous demande pas de le raisoudre à ma place mais j'aimeré comprendre comment je peut calculé le rapport entre le point et le prix. Claude Tardif lui répond.
	Le prix d'un diamant est proportionnel au carré de son poinds		2005-09-07
		Nico pose la question : Le prix d'un diamant est proportionnel au carré de son poinds. Un diamant de 0.45 g vaut 7500euros. 1. Combie coute un diamant de 0.693 g ? 2. Quel est le poids d'une diamant valant 45000 euros ? Je vous demande pas de le raisoudre à ma place mais j'aimeré comprendre comment je peut calculé le rapport entre le point et le prix. Claude Tardif lui répond.
	A scale factor		2021-02-02
		Layla pose la question : Beth planned to travel from Battery Park to Times Square. The distance between the two places is 2.48 inches on the map of New York City. If the scale factor used for the map was 1 mile = 0.4 inch, find the actual distance between the two tourist attractions. Penny Nom lui répond.
	A scale drawing		2019-12-28
		Boris pose la question : If the scale drawing of a car park is drawn to a scale of 1cm representing 7m and the car is 133m by 93m, find the length of the drawing Penny Nom lui répond.
	The price of a watermelon		2018-07-07
		errin pose la question : the price of the watermelon is directly proportional to its weight. If a watermelon that weighs 22 pounds cost $5.40, how much will a 17.5 pound watermelon cost? Penny Nom lui répond.
	Ratios and proportions		2017-08-01
		khurram pose la question : what is ratio and proportion? please give a detailed note on this topic, i am really panic of these calculations Penny Nom lui répond.
	4 carpenters can build 8 houses in 10 days.		2016-04-05
		Kenneth pose la question : Hello: Here is my question: 4 carpenters can build 8 houses in 10 days. 2 carpenters can build how many houses in 15 days? Here is one solution: The number of houses built is jointly proportional to the number of carpenters and the number of days. So h = kcd where k is a constant. Substituting the given: 8 = k*40, so k = 1/5. Our formula is then h = cd/5. I'm not sure how to determine whether or not one unit is jointly proportional to any other unit. However, if 2 carpenters are unknown as in 4 carpenters can build 8 houses in 10 days. How many carpenters can build 6 houses in 15 days? What is the solution using this method? And likewise, if days are unknown, as in 4 carpenters can build 8 houses in 10 days. 2 carpenters can build 6 houses in how many days? I thank you for your assistance. Penny Nom lui répond.
	The train fares are proportional to the square root of distance traveled		2014-01-11
		manish pose la question : train fares are proportional to the sq .root of distance traveled. the train fare is Rs. 24.4 for a distance of 140 kms. by how much % does the total fare increase if the same distance is covered by breaking the journey after every 35 kms. Penny Nom lui répond.
	Proportional rates		2013-10-10
		Varsha pose la question : A province's Ministry of Social services has found that both the number of people needing social assistance and the province's total expenditures on social assistance are proportional to the rate of unemployment. Last August when the provincial unemployment rate was 8.4 %, the province provided assistance to 89,300 individuals at a total cost of 4107.4 million. The forecast unemployment rate for next August is 7.9%. How many people can the province expect to need social assistance next August? What amount should the province budget for social assistance in August? Penny Nom lui répond.
	18/y=30/25 what number does y represent		2013-07-20
		celeste pose la question : 18/y=30/25 what number does y represent Penny Nom lui répond.
	A silver figurine		2013-05-03
		Renee pose la question : I have a silver figurine, the density of silver is 10.5g/cm3. if the figurine weighed 149 g. to determine the volume, he dropped it into a cylindrical glas of water. the diameter of the glass is 6 cm and the figurine was pure silver, by how much should the water level in the glass rise? Penny Nom lui répond.
	Sharing in a car rental		2013-04-09
		Marilyn pose la question : 8 persons are planning to share equally the cost of a rental car. If 1 person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons is increased by--------------? Penny Nom lui répond.
	If 4 cooks can bake 8 pies in 6 hours?????		2013-03-18
		Kenneth pose la question : Hello: I want to determine which quantities are directly and inversely proportional in order to determine the answer for the following:. If 4 cooks can bake 8 pies in 6 hours, 2 cooks can bake how many pies in 4 hours? Answer: 2 2/3 pies Can someone fully explain what I need to know in order to determine what is directly and inversely proportional in the example above? I thank you for your reply. Robert Dawson lui répond.
	The dimensions of a rectangle are in the ratio 5:3		2013-03-08
		SM pose la question : 4. The dimensions of a rectangle are in the ratio 5:3. If the longer side is 18 cm, a) What is the length of the shorter side? b) What is the area of the rectangle? Penny Nom lui répond.
	Sharing the profit		2012-05-14
		Mafiza pose la question : A and B started a business by investing $6000 and $8000 respectively. At the end of the year, a profit of $2100 is made. How much amount will A get as his share of profit? Penny Nom lui répond.
	The length is inversely proportional to the width		2012-03-18
		David pose la question : For a given set of rectangles, the length is inversely proportional to the width. In one of these rectangles, the length is12 and the width is 6. For this set of rectangles, calculate the width of a rectangle whose length is 9 Penny Nom lui répond.
	If x ix directly proportional to y then ...		2012-02-19
		Crystal pose la question : I understand that we say x and y are proportional, then y = kx. Generally when we say x is proportional to y, we think that when x increases y increases. Now I am questioning whether that is actually true. If k is negative, then when x increases, y DECREASES. My question is does this mean this statement is incorrect: If x is proportional to y, when x increases, y increases proportionally. Is it more correct to say: If x is proportional to y, when x increases, y either increases proportionally or decreases proportionally. Along the same line of reasoning, when x is inversely proportional to y, we think that when x increases y decreases, but that is true only if k is positive. Is that correct? Harley Weston lui répond.
	Fractions and proportions		2012-02-16
		Kenneth pose la question : Hello: I read the following in an old textbook: Display the numbers 27, 18, 26, and 39 so as to form a proportion. Which set of equal fractions is correct? 18/27 = 26/39 18/26 = 27/39 I thank you for your reply. Penny Nom lui répond.
	Four carpenters can build eight houses in 10 days.		2011-11-23
		Kenneth pose la question : Four carpenters can build eight houses in 10 days. Two carpenters can build how many houses in 15 days? Penny Nom lui répond.
	Dividing the profits		2011-04-19
		Tracy pose la question : I need to know how to come up with the answers to the following problems. I need to be able to show my work. So can you help me on how to come up with the answers to questions like these. Thanks. Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less does x receive compared to having the profits divided in proportion to the amounts invested by X, Y, and Z? In printing an article of 48,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,800 words. Using a smaller type, a page contains 2,400 words. The article is allotted 21 full pages in a magazine. How many pages must be in smaller type? ___________ thank you Penny Nom lui répond.
	Standard Deviation from a Proportion		2010-06-08
		silvestre pose la question : A large company finds that approximately 17% of all purchases are returned for credit. If the company sells 100,000 different items this year, about how many items will be returned. Find the Standard Deviation. Janice Cotcher lui répond.
	Who is more extravagant?		2010-06-01
		likhitha pose la question : kunal and ramit have Rs.40 and Rs.50 respectively. Kunal spends Rs.18 and ramit spends Rs.21.Who is more extravagant ? Penny Nom lui répond.
	Ratios and proportions with mixed units		2010-05-13
		Kenneth pose la question : Is it incorrect to have a proportion with numbers containing units that are not the same on both sides of the equal sign? Here is an example: $0.07/$1.00 = ?/$0.89 is okay, but if I add a different unit (20 ounces) to one side of the equal sign but not the same unit to the other, is the proportion incorrect? $0.07/$1.00 = ?/$0.89/20 ounces. In order to determine the missing amount, the calculation becomes ($0.07/$1.00)/$0.89/20 ounces = $?, but is this proportion correct with the units as they are? Two dollar-units cancel leaving dollar/ounces equals $?/ounces, but is this correct? Robert Dawson lui répond.
	Splitting the mortgage payment		2010-04-09
		Jodi pose la question : What percentage of $2,500.00 (monthly mortgage payment)would I pay per month - if I make $2,200.00 per month and my partner makes $6000.00 per month? Thank you. Tyler Wood lui répond.
	If 2 is to 55, then 6 is to ?		2010-03-04
		patty pose la question : Example, If 2 is to 55, then 6 is to ? How do I begin to figure this out, is is an algebra formula? Penny Nom lui répond.
	Proportionality		2010-02-27
		Nazrul pose la question : If a is proportional to b then how can I prove that (a^2-b^2) is proportional to ab. Please show me the process in details. ms. Dame and Tyler Wood lui répond.
	Proportionality		2009-11-03
		Nazrul pose la question : If x is proportional to y , how can I prove that (x^2-y^2) is proportional to xy. Please explain the process. Penny Nom lui répond.
	Proportionality		2009-06-29
		Nazrul pose la question : If x is proportional to y and y is proportional to z , how can I prove that (x^2+y^2)^3/2 is proportional to z^3 Harley Weston lui répond.
	Direct, inverse and indirect proportionality		2009-03-04
		Brian pose la question : My 14 year old is confused about indirectly proportional and inversely proportional. On searching on the internet we were directed to: http://mathcentral.uregina.ca/QQ/database/QQ.09.00/ellis1.html Here leanne starts explaining indirectly proportional and ends up describing inversely proportional. Has Leanne got it wrong ? What is indirectly proportional. Thanks Brian Chris Fisher lui répond.
	Scaling a logo		2008-10-20
		Carl pose la question : Hello! I hope that you can help me out here. I've been trying to figure this out for awhile now and can't come up with the answer logically. I am a graphic designer by trade and need to figure out how large my client's logo should be. The logo will need to be sized proportionally with the surface area of the page. The logo will always be sized at 1.2938(w) x .75(h) on a letter size page (8.5 x 11). My question is... When you increase the size of the page (not always proportionally sized - dimensionally) how do figure out the NEW size of the logo. I could have a page 20" x 40" or 30' x 4'... or ANY size really. I believe I have the new surface area of the logo but can't find the new dimensions. Harley Weston lui répond.
	Similar Triangles Given a Median		2008-08-17
		RAM pose la question : Sides AB , AC and median AD of a triangle ABC are respectively proportional to PQ PR and median PM of another triangle PQR. Show that ABC is similar to PQR Janice Cotcher lui répond.
	Fish in a pond		2008-06-28
		Peter pose la question : At the beginning of a study 24 fish are caught, tagged, and released back into a large pond containing fish. A few days later, 19 fish are caught from the pond and three of them have tags. Using this ratio, how many total fish would you expect to be living in the pond? The answer is 152. Why is that? Leeanne Boehm lui répond.
	Mathematics in cooking		2008-03-15
		Emily pose la question : What forms of Mathematics are used in Cooking? Harley Weston lui répond.
	Arithmetic means and geometric means		2007-04-04
		Dani pose la question : Hi! I was just wondering why the arithmetic mean of sets of numbers is larger than the mean proportional of the same numbers? Thanks! Dani Haley Ess lui répond.
	Ratios, proportions and medicine		2006-10-25
		Steven pose la question : I don't understand why we need to learn about ratios and proportions because i want to become a doctor and i don't know if i'll ever use this type of math. Penny Nom, Claude Tardif and Walter Whiteley lui répond.
	If a person who weighs 270 pounds on Earth		2006-05-10
		Chloe pose la question : If a person who weighs 270 pounds on Earth weighs 45 pounds in space, how much would a person weigh in space who weighs 132 pounds on Earth? Stephen La Rocque and Penny Nom lui répond.
	Cutting off the top of a triangle		2006-02-22
		Ken pose la question : I'm a creative type who needs to find how you can determine the horizontal, relative percentages within a triangle. Attached is a pdf showing approximately the 50% line, but I'd like to know how to determine any percentage (horizontally) within a triangle . I know that if I put a horizontal line though the height of the triangle I won't be showing 50% above and 50% below. The bottom part has to be larger (correct me if I'm wrong). I'm not concerned about height as I am wanting to break down the percentages into 60% at the bottom, 25% in the middle and 15% at the top. Penny Nom lui répond.
	Jobs relating to the topics of ratios and proportions		2005-05-17
		Alexa pose la question : What are some jobs relating to the topics of ratios and proportions other than architects and map makers? Walter Whiteley lui répond.
	Ratios and rates		2004-10-27
		Kenneth pose la question : What is the difference between a ratio and a rate? Penny Nom lui répond.
	Ratio and proportion		2004-04-02
		Kenneth pose la question : The terms of a ratio in a proportion are often expressed as a is to b as c is to d. Example: 2/4 = 6/12 this proportion represents that 2 is to 4 as 6 is to 12. What does the "a is to b as c is to d" really represent or indicate in ratios? Claude Tardif lui répond.
	Some ratio problems		2004-03-13
		Hossen pose la question : 1) After James spent 2/5 of his pocket money on magazines, and 1/4 of his pocket money at a football match, he had £1.75 left. How much pcket money did he have in the beginning? 2) A joint of Lamb costs £5.95 per/kg. The price per kilogram is reduced. A joint weighing 1.2kg is reduced by 50p. A) What is the reduced price per kilogram? c Penny Nom lui répond.
	Ratios and proportions		2003-12-31
		Frank pose la question : I would like to know how you use 'ratios and proportions' in everyday life. Penny Nom lui répond.
	Knitting gauge and felting		2003-10-27
		Sara pose la question : I wish to create a pattern to knit an item that will then be felted, thus, shrink as a result. In order to determine the proper gauge to use in creating the item, I produced a gauge swatch, noted the original properties and then the post-felting properties. They are as follow: Before Felting: 20 stitches(width) x 20 rows(height)yielded: Gauge: 3.2 stitches(width) and 4 rows(height) = 1" Dimensions: 6.25"(width) x 5.25"(height) After Felting: 20 stitches(width) x 20 rows(height) Dimensions: 4"(width) x 3"(height) How do I calculate the percentage change in size to accurately determine the number of stitches and rows needed to produce the desired dimensions for the finished (felted) item? Penny Nom lui répond.
	Two numbers have a ratio of 5:3		2003-01-01
		Patricia pose la question : Two numbers have a ratio of 5:3. The larger number is 36 more than half the difference of the two numbers. What are the two numbers? Penny Nom lui répond.
	Monthly rent		2002-09-04
		Al pose la question : How do you figure monthly rent if the charge is 11.00 per sq. ft. and there are 1,000 sq. feet? Leeanne Boehm lui répond.
	20 men dig 40 holes in 60 days		2002-07-24
		Lindsey pose la question : 20 men dig 40 holes in 60 days. So, 10 men can dig 10 holes in how many days? Penny Nom lui répond.
	Ratios		2002-04-17
		A student pose la question : Medication is givin at 1cc. per 20 pounds of body weight. A dog weighs 16 pounds how many ccs. of medication does the dog get? Dr. Lee wants you to prepare 1000 ml. of a 10% dextrose solution in lactaed ringers for diuresis or a patient you have a 1 L bag of lactated ringers and 500 ml of 50% dextrose for injection. How would you prpare the solution? Penny Nom lui répond.
	Ratios and proportions		2001-11-26
		Adam pose la question : I am doing a project where I come to this website and ask a math expert about a certain topic. My topic is ratios and proportions. Can you please tell me what your job is and how you use ratio's and proportions in your job. Can you also please explain what ratios and proportions are. Harley Weston lui répond.
	A sample size problem		2001-10-28
		Charles pose la question : The U.S Transportation Dept. will randomly sample traffic reports to estimate the proportion of accidents involving people over the age of 70. The Dept. has no advance estimate of this proportion. how many reports should the dept select to be atleast 97% confident that the estimate is within .01 of the true proportion? Harley Weston lui répond.
	Ratio and proportion		2001-10-10
		Steve pose la question : Where would you use a proportion and/or a ratio in a real life job or problem. Leeanne Boehm and Walter Whiteley lui répond.
	Logs for the fire		2001-05-02
		Tom pose la question : Three girls named Amanda, Beatrice, and Cleo visit a summer cottage. Amanda brings 5 logs for the fire, Beatrice brings 3 logs and Cleo contributes 80 cents. How should the money be divided among the other two girls so that each of the three is felt to have contributed equally to the cost of the fire. Penny Nom lui répond.
	A confidence interval		2001-04-26
		Kim pose la question : A poll asked 1528 adults if they were in favor of the death penalty, 1238 said yes, find 99% confidence level for percent of all adult who are in favor of the death penalty. Andrei Volodin lui répond.
	Ratios		2001-02-20
		Louise pose la question : there are 3 people and they decide to share their tips (working in a restaurant) ann gets £180 tony £130 peter £90 total amount is £36 what share should they get. Penny Nom lui répond.
	Proportionality: direct and indirect		2001-01-18
		Nancy Ellis pose la question : What is the difference between directly proportional and indirectly proportional? Leeanne Boehm lui répond.
	When did the man go out?		2000-12-14
		Rajesh pose la question : A man goes out in time between 5 and 6 and when he comes back he observes that two hands have interchanged position. Find when the man did go out? Penny Nom lui répond.
	Three problems		2000-12-14
		Sarah pose la question : Hi, my name is Sarah, and I'm asking this question on behalf of niece who is in secondary two. Thank you. Q1. What is the angle formed by the hour hand and the minute hand of a 12 hour clock at 5.50pm. . . . Penny Nom lui répond.
	Direct and inverse variation		2000-12-12
		Ashley pose la question : I'm stuck on this unit of direct and inverse variation..please and my problems and show me how to do each PLEASE!!! Assume that y varies directly as x If y= -4 when x = 2, find y when x= -6 Assume that y varies inversely as x If y =-4 when x=2, find y when x =-6 Penny Nom lui répond.
	Cutting the lawn		2000-10-26
		Kacie pose la question : Ellen can mow a lawn in 2 hours. Mary can mow the same lawn in 1.5 hours. How long would it take them to mow the lawn together? Penny Nom lui répond.
	Working together on a job		2000-10-23
		Nicole pose la question : WORKING TOGETHER ON A JOB: Patrice, by himself can paint 4 rooms in 10 hours. If he hires April to help they can do the same job together in 6 hours. If he lets April work alone , how long will it take her to paint 4 rooms? Claude Tardif lui répond.
	The scale on a map		2000-10-21
		Caroline pose la question : On a map scale of 1:15000 the distance between two buildings is 31.4cm what is the actual distance in km. Penny Nom lui répond.
	Sunflower seeds		2000-10-09
		A parent pose la question : Find the number of 3/4 pound of sunflower seeds that can be filled with 225 pounds of sunflower seeds Penny Nom lui répond.
	Making milkshakes		2000-09-04
		Linda pose la question : To make a chocolate milkshake, 3 parts chocolate syrup are mixed with 2 parts malt. To make a vanilla milkshake, 2 parts vanilla syrup are mixed with 1 part malt. If equal parts chocolate and vanilla milkshakes are mixed, what is the proportion of malt to milkshake? Penny Nom lui répond.
	Six typists		2000-08-19
		Paula Duncan pose la question : If it takes a typist 4.5 hours to type 860 words, how many hours would it take 6 typist to do 16800 words? Penny Nom lui répond.
	Ratios		2000-01-11
		Cyndi pose la question : My name is Cyndi and i am in middle school in the 8th grade. The questions i am about to ask come from my book. My return address is PR_Angel1@yahoo.com The directions on a can of lemonade mix say to use 8 tablespoons of mix to make 2 quarts of lemonade. Heathcliff wants to make 7 quarts of lemonade. How many tablespoons of mix should he use? and In a recent year, the ratio of men to women in the United States armed forces were about 9 to 1 if there are 90 men in a random group of military personnel, how many women would you expect to find in the group? in a group of 90 military personnel, how many of them would you expect to be women? what percent of armed forces personnel were women in that year? Penny Nom lui répond.
	Ratios and proportions		1999-11-19
		Rebecca pose la question : I'm not that good of a student and I was woundering if there is a shortcut to ratios and proportion. My 6th grade teach tought all we needed to know. I was just wounder if there was an easier way. Claude Tardif and Harley Weston lui répond.
	Percentages		1999-09-23
		Pete Cornejo pose la question : Hello, I was wondering if you could help me with a question? Yesterday my daughter came to me and asked if I could help her solve these three problems. 18 percent of 25 is what? 18 percent is what of 25? 25 is what percent of 18? Walter Whiteley lui répond.
	Rolling a seven		1998-06-11
		Bruce Thompson pose la question : What is the probablity of rolling two dice and it coming out as seven? a) 1/6 b) 1/36 please give me the correct awnser and explain please. Harley Weston lui répond.
	Ratios.		1997-11-26
		Jennifer Kim pose la question : I am a grade 12 math student who would like to know if there is an easy way to solve In a school the ratio of the number of Grade 11 students to the number of grade 12 students is 4:3. If there were 5 fewer students in grade 11 and 3 more students in grade 12, the ratio would be 7:6. How many students in each grade? Penny Nom lui répond.

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