Question

Suppose that 21 inches of wire costs 63 cents.

At the same rate, how much (in cents) will 54 inches of wire cost?

Answer 1

162 cents

Explanation:

to find the rate you want take the inches which is 21 and divide by the cost which is 63 and find the rate is 3 which means each inch costs 3 cents and so with that rate you can find the cost of 54 inchest of wire so you take your 54 inches and multiply it by 3 which is the cents per inch and find that 54 inches of wire would cost you 162 cents