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Inessa [10]
3 years ago
10

The question is shown in the picture

Mathematics
2 answers:
ArbitrLikvidat [17]3 years ago
7 0
The equation
service fee + hourly fee = the total fee
20 + 25x = 282.50

Solving the equation
20 + 25x = 282.50
25x = 282.50 - 20
25x = 262.50
x = 262.50/25
x = 10.5
The plumber completes his job in 10.5 hours

The answer is option a.
Masteriza [31]3 years ago
3 0
20 + 25(times the number of hours) = 282.50
You add the 20 because of the one time service fee.

Now lets work this out.
20 + 25x =282.50
25x = 262.50   (subtract both sides by 2 to get the x's alone)
x = 10.5    (divide both sides by 25 to get just x)
x = 10.5 hours

So the answer is A.
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