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Ne4ueva [31]
2 years ago
5

A plumber charges a flat fee of $76 to visit a home and examine a clogged drain. The plumber charges an additional $24 per hour

spent fixing the drain. The
total cost, C (in dollars), for fixing a drain that takes h hours is given by the following.
C=76 +24h
Answer the following questions.

(a) If the plumber charged a total of $364, how many hours did she spend
fixing the drain?
(?hours

(b) What is the total cost for fixing a drain that takes 6 hours?
so $?
Mathematics
1 answer:
prisoha [69]2 years ago
5 0

Answer:

(a) 12 hours

(b) $220

Step-by-step explanation:

(a) First we plug in $364 for C

C=76+24h

364=76+24h

Subtract 76 from both sides

24h=288

Divide both sides by 24

h=12

She spent 12 hours fixing the drain

(b) First we plug 6 hours in for h

C=76+24(6)

Multiply it out

C=76+144

Add

C=220

It costs $220 for fixing a drain that takes 6 hours

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