12 slices of pizza cost $9.25. How much would 15 slices cost? (Use the Lesson 3 notes for help)(1 point)

Responses

$12.34
$12.34

$111.00
$111.00

$10.80
$10.80

$11.57

1 answer

To find the cost of 15 slices of pizza, we can set up a proportion.

12 slices cost $9.25, so we can set up the proportion:

12 slices / $9.25 = 15 slices / x

To solve for x, we can cross multiply:

12x = 9.25 * 15

12x = 138.75

Dividing both sides by 12:

x = 11.57

Therefore, 15 slices of pizza would cost $11.57.