If 5 worksites take 31.5 hours to prepare, how long will it take to prepare 13 worksites

Mathematics

2 answers:

kotegsom [21]4 years ago

7 0

Answer:

81.9 hours.

Step-by-step explanation:

5 work sites take 31.5 hours to prepare, so

1 work sites take 31.5 / 5 hours to prepare, and

13 work sites take . (31.5 * 13) / 5 hours to prepare

= 409.5 / 5

= 81.9 hours.

Klio2033 [76]4 years ago

6 0

31.5%5=6.3
6.3*13= 81.0

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Step-by-step explanation:

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Problems of normal distributions can be solved using the z-score formula.

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