To find the cost of 11 inches of wire, we can set up a proportion using the given ratio of cost to length:
18 inches of wire costs 72 cents
Let x be the cost of 11 inches of wire.
Using the proportion:
18 inches / 72 cents = 11 inches / x cents
Cross-multiplying:
18x = 11 * 72
18x = 792
Dividing both sides by 18:
x = 44
Therefore, 11 inches of wire will cost 44 cents.
Suppose that 18 inches of wire costs 72 cents.
At the same rate, how much (in cents) will 11 inches of wire cost?
1 answer