3 years ago

A repair person charges $25 per hour plus and initial service charge of $30.

Mathematics

2 answers:

Norma-Jean [14]3 years ago

6 0

Answer:

The repair person did 5 hours of work.

Step-by-step explanation:

155 = 25x + 30

125 = 25x

5 = x

tankabanditka [31]3 years ago

3 0

Answer:

5 hours

Step-by-step explanation:

155 less 30 initial = 125 divided by 25 an hour = 5

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Find the following when a = -1, b = 2, c = -1/4<br> (4b - 3)/(2a) -1

Katena32 [7]

We substitute the given into the equation
given: a=-1, b=2, c= $\frac{-1}{4}$
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to continue, we can either find a common denominator or change the fraction to decimal.
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