How do I find how much he paid?

Question

Larry buys 45 inches of door molding which costs $5.76 per yard. How much does he pay?

Answer 1

Recall that 36 inches is equivalent to 1 yard.

If the cost of the molding is $5.76 for 1 yard, we can divide $5.76 by 36 to determine the cost for 1 inch:

$5.76 ÷ 36 = $0.16 for 1 inch

Larry bought 45 inches, so his total cost will be:

$0.16 x 45 = $7.20 for 45 inches