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den301095 [7]
3 years ago
12

an electrician charges $55 per hour of electrical work plus a flat fee of 25$ as a service charge . if a customer's bill 190 whi

ch of the following is closest to the number of hours the electrician spent working on the job? A.3.0 B.3.5 C.4.0 D. 5.5 E.10.0
Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

\large \boxed{\text{A. 3.0 h}}

Step-by-step explanation:

The bill          = $190

Less flat fee  =    25

Work done   = $165

\text{Hours worked} = \$165 \times \dfrac{\text{1 h}}{\$55} = \textbf{3.0 h}\\\\\text{The electrician was on the job for $\large \boxed{\textbf{3.0 h}}$}

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