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WINSTONCH [101]
2 years ago
7

A plumber charges 130 to start job plus 56 per hour . How many hours did she work if the total bill is 214

Mathematics
2 answers:
dusya [7]2 years ago
7 0

Answer:

hours=1.5

Step-by-step explanation:

Make an equation. Note key words like "plus", "per" and "total"

130+56h=214

where h is the total hours worked. Solve for h:

Subtract 130 from both sides and simplify

130-130+56h=214-130\\56h=214-130\\56h=84

Divide both sides by 56 to isolate the variable

\frac{56h}{56} =\frac{84}{56}\\\\h=\frac{84}{56} \\\\h=\frac{3}{2} \\\\h=1.5

The plumber worked for an hour and a half.

Done.

iragen [17]2 years ago
4 0

Answer:

The plumber worked for 1.5 hours

Step-by-step explanation:

y = 130 + 56x

Substitute 214 for y in the equation

214 = 130 + 56x

-130   -130                      Subtract 130 from both sides

84 = 56x                         Divide both sides by 56

1.5 = x

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Step-by-step explanation:

The problem is:

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Answer:

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Step-by-step explanation:

Given:

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