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Mixing candy |
2009-01-27 |
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adriana pose la question :
The question says:
that a merchant wishes to mix candy worth 45 cents per pound, with some candy that costs 80 cents per pound. this will create a mixture of candy that sells for 65 cents per pound. there is a total amount of 350 pounds of candy.
What i need to know is:
The amount of pounds of candy at 65 cents per pound? and
The amount of pounds of candy at 80 cents per pounds?
Harley Weston lui répond. |
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25,000 pounds of sheet metal |
2009-01-27 |
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JESSICA pose la question :
I need to convert 25,000 lbs. of 32x48 sheet metal into total sq. feet. What would be my formula?
Robert Dawson lui répond. |
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Find area of the rectangle in terms of L. |
2009-01-27 |
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Arlen pose la question :
The length of a rectangle is L. The width is 8 less than the length. Find area of the rectangle in terms of L.
Penny Nom lui répond. |
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The vertical line test |
2009-01-26 |
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bob pose la question :
what is a Vertical line test
Stephen La Rocque lui répond. |
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The grade of a roadway |
2009-01-26 |
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black pose la question :
A highway that has a 6% grade rises 6 ft vertically for every 100 ft horizontally. Which trigonometric ratio is being used in reporting the 6% grade? Explain why
Stephen La Rocque lui répond. |
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A tennis schedule |
2009-01-26 |
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Lorraine pose la question :
I need to create a tennis schedule. We have 8 players, but only 4 play at one time. I need to create a schedule for 34 matches, but of the 34 each player plays 17 times. Each player must also play with each of the other 7 the same number of times. For instance player 1 will play 17 times, and will play with the other players the same number of times as player 2 does. Is this even possible?
Robert Dawson lui répond. |
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ax^2 + bx + c = 0 has no real roots and.... |
2009-01-26 |
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Alberto pose la question :
The equation ax^2 + bx + c = 0 has no real roots and a + b + c < 0 . Chose the right answer:
(A) c > 0
(B) c <= 0
(C) c = 0
(D) c >= 0
(E) c < 0
Explain the choice.
Robert Dawson and Harley Weston lui répond. |
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How long will it take to make 50 miles? |
2009-01-26 |
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Tamara pose la question :
An object is traveling at a speed of 45 km/minute. How long will it take to make 50 miles?
Robert Dawson and Stephen La Rocque lui répond. |
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Grade of a hill |
2009-01-26 |
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rachel pose la question :
if the grade is 18%, how many feet would it fall vertically over a horizontal distance of 250 yards.
Robert Dawson lui répond. |
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Solve (3x-2)/4 - 3x = 12 |
2009-01-26 |
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michelle pose la question :
3x-2/4 - 3x = 12
Penny Nom lui répond. |
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Three consecutive natural numbers |
2009-01-26 |
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abby pose la question :
1.what is the smallest four-digit number that is the sum of the three
consecutive natural numbers? what are the three consecutive
natural numbers that give this sum?
2.what is the largest three digit number whose square root is a prime?
Penny Nom lui répond. |
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The difference quotient (f(x+h)-f(x))/h |
2009-01-26 |
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helen pose la question :
Find the difference quotient of f, f(x+h)-f(x)/h, h does not equal 0, for this function. Be sure to simplify. that is, find f(x)=x^2-x+4
Robert Dawson lui répond. |
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Linear speed |
2009-01-26 |
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Hom pose la question :
A semi is driving cross country at 70mph. The tires on the semi have a 3 foot diameter. What is the linear speed in feet per minute?
Robert Dawson lui répond. |
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Using y = mx + b |
2009-01-26 |
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Caroline pose la question :
How do you write a symbolic representation using the y=mx+b method?
Robert Dawson lui répond. |
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25 names in a hat |
2009-01-26 |
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Irfan pose la question :
If there are 25 names in a hat, 15 girl's names and 10 boy's names, what is the probability that a name drawn at random will be
I. a girl's name
II. a boy's name
III. not a girl's name
IV. not a boy's name.
Robert Dawson lui répond. |
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