Question

The cost of a sailing rope is directly proportional to the length of rope purchased. If an 80-foot rope cost $112 find the cost of a 120-foot rope

Answer 1

The cost of a 120-foot rope would be $168.

Step-by-step explanation:

The cost of a sailing rope is directly proportional to the length of the rope purchased. This means that as the length of rope increases, the cost also increases. To find the cost of a 120-foot rope, we can set up a proportion using the given information:

80 feet is to $112 as 120 feet is to x.

Using cross-multiplication, we can solve for x:

80x = 112 * 120

x = (112 * 120) / 80

x = $168.