Question

At the toy store, 3 toy cars cost $2.61. How much does it cost to buy 15 toy cars?

Answer 1

15 = 3 x 5

Factor of 5.

3 x 5 = 15
2.61 x 5 = 13.05

$13.05 to buy 15 toy cars

Answer 2

Use a ratio
`(3)/(2.61)= (15)/(x)` . 13.05 dollars.