6 inches of wire can be bought for 18 cents.
Step-by-step explanation:
Step 1:
First, we need to determine how much a single inch of wire costs in cents.
To do this, we divide the cost for x inches of wire by x inches.
So if 12 inches cost 36 cents,
The cost of 1 inch of wire = [tex]\frac{36}{12} = 3[/tex] cents. So a single inch of wire costs 3 cents.
Step 2:
To determine how much wire can be bought for 18 cents, we divide the 18 cents by the cost of 1 inch of wire i.e. 3 cents.
The amount of wire that can be bought for 18 cents = [tex]\frac{18}{3} = 6[/tex] inches.
So 6 inches can be bought for 18 cents.
