Question

The cost of 12 widgets is $7.50. How much will it cost to buy 52 widgets?

Answer 1

12 : $7.50= 52 : x
x = $7.50*52/12
x = $32.5

Answer 2

$32.50

Explanation:

To answer this question, find the price per widget by dividing $7.50 by the number of widgets (12)

7.50 / 12 = 0.625

You may be tempted to round to 0.63 here, and maybe that is what your teacher wants, but typically you save rounding for the end of your calculations. So let's keep the price-per-widget at 0.625 and multiply it by the 52 widgets to find the total cost.

0.625 * 52 = 32.5 or $32.50