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frosja888 [35]
3 years ago
12

Kiley can complete 3 math problems in 1 1/4 hours. How many can she complete in one hour

Mathematics
2 answers:
posledela3 years ago
8 0

Answer:

2.4 math problems.

Step-by-step explanation:

3 math problems in 1 hour and 15 minutes.

Divide by 5. 3/5= 0.6

0.6 problems in 15 minutes.

2.4 problems in 1 hour.

How many math problems in one hour?

0.6 • 4= 2.4.


Sergio [31]3 years ago
7 0
3/(5/4) = x/1
x = 12/5 = 2.4 Problems/h
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<h3>What is an equation?</h3>

The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.

It is given in the question that:-

During normal breathing, about 12% of the air in the lungs is replaced after one breath

If the initial amount of air in the lungs is 500 mL

how much of the original air is present after 8 breaths?

The calculation for the eduction of the air will be done by the following equation:-

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Hence original air present after 8 breaths will be equal to 179.81 ml.

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2 years ago
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Step-by-step explanation:

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3 years ago
Alex needs 2 meters of sprinkler pipe. He has a pipe that is 89 centimeters long. How much more sprinkler pipe does Alex need?
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3 years ago
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Step-by-step explanation:

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6 0
3 years ago
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