Question

At a store, 5 pencils cost $2.50. how many pencils can you buy for $7.50

Answer 1

15 pencils

Explanation:

5/2.5=x/7.5

cross product

2.5*x=5*7.5

2.5x=37.5

x=37.5/2.5

x=15

Answer 2

To find out how many pencils you could buy for $7.50, you first need to see how much one pencil costs

The total of one pencil is 2.50/5

2.50/5= 0.50

Each pencil is a total of $0.50

Next you want to take 7.50/.50 to see how many pencils you could get

$7.50/$0.50= 15

You would be able to buy 15 pencils with $7.50

Hope this helps ;)