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4 votes
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?

User Mlevit
by
8.0k points

1 Answer

4 votes

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

User Mttmllns
by
8.5k points
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