Question

Suppose that 15 inches of wire costs 60 cents.

At the same rate, how many inches of wire can be bought for 48 cents?

Answer 1

12 inches of wire

Explanation:

Given:

• 14 in = $0.60
• x in = $0.48

Solve:

Set up a proportion to solve this equation. We can find the price for 1 inch first.

1. Solve for 1 inch

• 15 in = $0.60
• 1 in = $0.60 / 15
• 1 in = $0.04

Now, we know that 1 inch of wire costs $0.04. We can solve for the x inxhes:

1. Solve for x inches

• x in ·$0.04 = $0.48
• x in = $0.48 ÷ $0.04
• x in = 12
• x = 12

You can buy 12 inches of wire.

-Chetan K