Question

suppose that 23 inches of wire costs 69 cents. at the same rate, how much (in cents) will 39 inches of wire cost?

Explanation:

Step1: Find cost per inch

First, we find the cost per inch of the wire. If 23 inches cost 69 cents, then the cost per inch is $ \frac{69}{23} $ cents per inch. Calculating that, $ \frac{69}{23} = 3 $ cents per inch.

Step2: Calculate cost for 39 inches

Now, to find the cost for 39 inches, we multiply the cost per inch (3 cents) by 39 inches. So, $ 3 \times 39 = 117 $ cents.

Answer:

117