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For each plumbing repair job, Mr. Wrench charges \(N\) dollars for coming out to the house plus \(x\) dollars per hour that he works at the house. He charged \(\$97\) for a one-hour repair job and \(\$265\) for a five-hour repair job. What is his charge for a two-hour repair job?

 

Thanks in advance for the help /ᐠ。ꞈ。ᐟ\

 Apr 4, 2019
edited by detkitten  Apr 4, 2019
 #1
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\(N+1x = 97\\ N+5x = 265\)

 

\(\text{Subtract eq 1 from eq 2}\\ 4x = 168\\ x = \$42\\ N = 97-x = 97-42 = \$55\)

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 Apr 4, 2019
 #2
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+2

Thanks! ᐠ。ꞈ。ᐟ✿\

detkitten  Apr 4, 2019

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