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3 years ago

14

Mrs.Douglas wanted to give each of her students 3 fancy pencils. She has 20 students. If fancy pencils come in packs of 12, how

many packs does she need to purchase so that all of her students get their pencils?

2 answers:

Alex3 years ago

4 0

20* 3 = 60 total pencils
60/12= 5 packs

Colt1911 [192]3 years ago

3 0

1 pack of 12 will give 4 students their pencils. 20/4 = 5

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$- \frac{2}{3} - ( - \frac{4}{6} ) = \\$

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let, sp without vat be x.

sp with vat= x + 13% of x.

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4 years ago

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We have a bunch of rectangles making up the lateral sides of this figure. They have side length 12 and height 13.

So the area of one rectangle is 12 x 13 = 156.
We have 6 of these rectangles, so our lateral area is 6(156) = 936.

The total surface area requires that we include the area of the base. To find the area of a regular polygon we take half of the product of the apothem and perimeter.

A = (1/2)*a*p

The apothem is given to be 10.39,
and the perimeter is fairly easy to calculate:
With the side length being 12, the perimeter is then 6(12) = 72.

So then the area of our base is (1/2)*10.39*72 = 374.04

So then the total surface area is the (base area) + (lateral area),
374.04 + 936 = 1310.04

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3 years ago

There are 8 pints in a gallon. How would you convert 13 pints into gallons?

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Step-by-step explanation:

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