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15 August, 13:18

Tabitha's mom is trying to decide between two plumber companies to fix her sink.

Water R Us Company charged $52 for a service call, plus an additional $34 per hour

for labor.

Clogs B Gone Company charges $34 for a service call, plus an additional $40 per hour

of labor.

What will the total cost be from either company when they cost the

same?

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Answers (1)
  1. 15 August, 13:20
    0
    the amount due for 3 hours would be $52 + ($34/hr) (3 hrs) = $154

    Step-by-step explanation:

    Write two equations, one for the total cost payable to Water R Us and another to Clogs:

    $52 + ($34/hr) t = $34 + ($40/hr) t, or

    $18 = ($6/hr) t, which tells us that t = 3 (That's 3 hours).

    At the time the charges from the two companies would be the same (3 hours into the job), the amount due for 3 hours would be

    $52 + ($34/hr) (3 hrs) = $154
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