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Alex_Xolod [135]
2 years ago
9

Pete can do a job in 50 minutes while his brother Jim can do it in 1/2 the time. How long will it take them to do the job workin

g together? (50/3 min)
Mathematics
1 answer:
Kryger [21]2 years ago
7 0

It will take them 20 minutes to do the job working together.

<h3><u>Working time calculation</u></h3>

Given that Pete can do a job in 50 minutes while his brother Jim can do it in 1/2 the time, to determine how long it will take them to do the job working together, the following calculation must be performed:

  • 1/1 + 2/1 = 3/1
  • 1 / (3/1) = 1/3
  • 60 min / 3 = 20 min

Therefore, it will take them 20 minutes to do the job working together.

Learn more about working time calculation in brainly.com/question/536439

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Answer:

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230258.5

Step-by-step explanation:

Given that:

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P(X < 10,000) = 1 - e^-(0.00001 * 10000)

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b. Lasts more than 120,000 hours.

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P(X > 120,000) = e^-(0.00001 * 120000)

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= 230258.5

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