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More than 100% |
2008-02-04 |
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francisco pose la question : when changing from a percent to a decimal,how can you tell when the decimal will be greater than 1? Penny Nom lui répond. |
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The volume of a pyramid |
2008-02-03 |
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Britni pose la question : The base of this pyramid is an equilateral triangle with sides 8 units.
The altitude of the pyramid is square root of 3. What is its volume? Penny Nom lui répond. |
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Total profit |
2008-02-03 |
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Rhonda pose la question : I help to manage a concession stand. We sell a variety of items. Some have a profit of 60%, some 80%, etc. We have done nothing scientific to choose our prices. We just try to stay in the ballpark of schools around us. Our administrator wants to pay those that run the concession stand a percent of what is in the cash box after start-up money is taken out. We have some gathered some data (not much) on how many of each item we sell and can certainly calculate percent profit. Is the profit for the entire concession stand a weighed average? I'm thinking (% profit on candy)(number candy sold) + (percent profit nachos)(number nachos sold) + (percent profit pop)(number pop sold), etc. Will this work? Does the AMOUNT of profit for these different items need to be figured-in? Hmmm. . . Victoria West and Harley Weston lui répond. |
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A inear system |
2008-02-03 |
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Kelly pose la question : is (-1,5) a solution of each system? y=-x+4 y=-1/5x Penny Nom lui répond. |
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Numbers and Operations |
2008-02-02 |
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Charlotte pose la question : On the TABE (Test for Adult Basic Education) test, one of the categories
is number operation. I would like to know what consist of number operation. Penny Nom lui répond. |
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The size of a lot |
2008-02-02 |
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linda pose la question : Hi, could you please tell me how close to an acre of land my lot is. The lot size is 140 ft by 200ft. I am trying to see how close to an acre it is. Penny Nom lui répond. |
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The 5% GST |
2008-02-02 |
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Nathalie pose la question : The GST is now 5% I have a new amount $587.43 what is the formula to calculate the GST. On the $587.43 Penny Nom lui répond. |
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The perimeter of a semicircle |
2008-02-02 |
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Lisa pose la question : How do you find the perimeter of a semi circle when you are only given
the diameter, say 24 units? Penny Nom lui répond. |
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Percentage savings |
2008-02-01 |
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Donna pose la question : What is the percentage of savings if I bought an item for $98.60 that was $152.23 and something for $96.48 that was $136.65? Penny Nom lui répond. |
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Two equations in x and y |
2008-02-01 |
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leslie pose la question : 6x+8y=40 4x+5y=25 Penny Nom lui répond. |
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The dimensions of a rectangle |
2008-02-01 |
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Evan pose la question : you are given that the area of a rectangle is 21.6in sq. find the base and the height of the rectangle. Penny Nom lui répond. |
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Driving from Mathville to Bioville |
2008-02-01 |
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Ariel pose la question : Mahtab took hours to drive from Mathville to Bioville, a total of 485 km.
She drove part by highway at 80 km/h and part by slow roads at 30 km/h.
How many hours did she drive each type of road? Penny Nom lui répond. |
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The sign of the quotient of two integers |
2008-02-01 |
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michelle pose la question : without actually dividing, how can you decide whether the quotient of two integers is A. positive B. negative C. 0? Penny Nom lui répond. |
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Tiles on a basement floor |
2008-01-31 |
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ORIETTA pose la question : I have a basement 1000 sq ft I want to purchase tile that are 18x18inches
and they are charging 4.15 sq ft how much would it cost since I will need
less tiles to cover the area since it's not 12X12 Penny Nom lui répond. |
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Bubbles trapped in the volumetric pipet |
2008-01-31 |
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Nursing pose la question : In determining the density of a liquid, a student left air bubbles trapped in the volumetric pipet. Did this give a density less than expected or greater than expected? Why? Penny Nom lui répond. |
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