Question

Twelve apples cost $2.00. How much will 50 apples cost?

Answer 1

About $8.33.

Explanation:

Write a proportion. Make sure the values line up horizontally:

`\frac{12\text{ apples}}{\$2} =\frac{50\text{ apples}}{\$x}`

Cross multiply:

`100=12x\\x=25/3\approx\$8.33`

Answer 2

$8.33

Explanation:

`Solve \:using \: proportion\\\\12\:apples = \$ 2\\50\:apples = \$ x\\Cross \: Multiply\\\\12x = 100\\\\\\(12x)/(12) = (100)/(12) \\\\x = \$ 8.333`