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AURORKA [14]
2 years ago
15

A plumber and his assistant work together to replace the pipes in an old house. The plumber charges $30 an hour for his own labo

r and $20 an hour for his assistant's labor. The plumber works twice as long as his assistant on this job, and the labor charge on the final bill is $2000. How long did the plumber and his assistant work on this job
Mathematics
1 answer:
Korvikt [17]2 years ago
6 0

Answer:

The plumber worked 50 hours, and his assistant worked 25 hours.

Step-by-step explanation:

Since a plumber and his assistant work together to replace the pipes in an old house, and the plumber charges $ 30 an hour for his own labor and $ 20 an hour for his assistant's labor, and the plumber works twice as long as his assistant on this job, and the labor charge on the final bill is $ 2000, to determine how long did the plumber and his assistant work on this job the following calculation must be performed:

40 x 30 + 20 x 20 = 1200 + 400 = 1600

50 x 30 + 25 x 20 = 1500 + 500 = 2000

Therefore, the plumber worked 50 hours, and his assistant worked 25 hours.

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Andrew is flying a kite held by 175 meters of string that makes an angle of elevation with the ground of 40. Emma is standing di
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Answer:

x=134.05m

Step-by-step explanation:

From the question we are told that:

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3 years ago
In the final quarter of 2011, a company received 32% of the total profit for all mobile phone manufacturers. If the total profit
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The total profit received for all mobile phone manufacturers for all carriers was 1.54 billion

Step-by-step explanation:

Given,

Profit received = 32%

Total profit received = $4.8 billion

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Amount received = \frac{32}{100}*4.8

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Amount received = 1.536 billion

Rounding off

Amount received = 1.54 billion

The total profit received for all mobile phone manufacturers for all carriers was 1.54 billion

Keywords: percentage, division

Learn more about percentage at:

  • brainly.com/question/10940255
  • brainly.com/question/10941043

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The number of 7th graders attending Middle field Science Academy this year is 130% of last year’s total. If 500 7th graders atte
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Answer:

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