Cora bought 90 feet of cable for $.25.20. She needs 40 more feet. If the unit price is the same, how much will she pay for the extra 40 feet of cable?

Question

asked Dec 22, 2022 179k views

1 Answer

Mttmllns · Answer 1 · 2022-12-27T04:10:48+0000

Answer: $11.2

Explanation:

Given

Cora bought 90 feet cable for
$\$25.20$

So, the price of a foot is the division of rate and length

$\Rightarrow \text{Price P=}(25.20)/(90)\\\\\Rightarrow P=\$0.28\ \text{per foot}$

for additional 40 feet, the cost is

$\Rightarrow 0.28* 40\\\Rightarrow \$11.2$

Thus, Cora pays $11.2 for extra 40 feet