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Misha Larkins [42]
3 years ago
14

Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level

Mathematics
1 answer:
lord [1]3 years ago
5 0

Answer:

It must be a positive number since it represents a number of hours.

Step-by-step explanation:

Given Pieter's equation :

7h – 5(3h – 8) = –72

Opening up the bracket

7h - 15h + 40 = - 72

7h - 15h = - 72 - 40

-8h = - 112

Divide both sides by -8

-8h / -8 = - 112 / - 8

h = 14

Since, h represents the number of hours, and the value of h equals 14 (h cannot be negative), hence, option 2 is correct.

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densk [106]

Answer:

So first, you have to isolate w. You can do this by getting rid of the 8/5.

This will get you to: w = 25

7 0
4 years ago
Can i get some help. To clarify this is homework not a test or etc...
Vikki [24]

Answer:

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Step-by-step explanation:

The volume of a rectangular prism is length*width*height.

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7 0
3 years ago
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Natalka [10]

Answer:

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Step-by-step explanation:

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3 years ago
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marusya05 [52]

Answer:

$184, assuming attendance of one course (not class).

Step-by-step explanation:

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As there are 12 months in one year:

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5 0
4 years ago
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Strike441 [17]

Answer:

2

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