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Komok [63]
3 years ago
8

Hunter needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for

2.5 hours and charged him $155 for parts. The total was $417.50. Write and solve an equation which can be used to determine xx, the cost of the labor per hour
Mathematics
2 answers:
Strike441 [17]3 years ago
7 0

Answer:105

Step-by-step explanation:

Just becuase

Natali5045456 [20]3 years ago
4 0

Answer:

Labor costs $205 per hour.

Step-by-step explanation:

1. Subtract the cost for parts.

$417.50 - $155 = $262.5

2. Divide the labor cost by the number of hours (2.5)

$262.5 / 2.5 = 105

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<h2>SOLVING</h2>

\Large\maltese\underline{\textsf{A. What is Asked}}

Which ordered pairs make the equation \bf{3x+2y=-7} true? Select all that apply. 3 options are given

\Large\maltese\underline{\textsf{B. This problem has been solved!}}

We can tell which ordered pairs make equations true by plugging in the coordinates.

\mathbb{ORDERED\;PAIR\;NUMBER\;ONE}

\bf{3(3)+2(-8)=-7} | simplify

\bf{9-16=-7} |simplify

\bf{-7\equiv-7} | this one checks

\mathbb{ORDERED\;PAIR\;NUMBER\;TWO}

\bf{3(-2)+2(-1)=-7} | simplify

\bf{-6-2=-7} | simplify

\bf{-8\neq-7} | this one does <em>not </em>check

\mathbb{ORDERED\;PAIR\;NUMBER\;THREE}

\bf{3(1)+2(-4)=-7} | simplify

\bf{3-8=-7} | simplify

\bf{-5\ne-7} | this one does <em>not</em> check

\rule{300}{1.7}

\bf{Result:}

              \bf{=The\;First\;Option

\boxed{\bf{aesthetic \not101}}

5 0
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