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3 years ago

Maria earned $450 in 5 days. What was her average earning per day?

Mathematics

2 answers:

dedylja [7]3 years ago

7 0

Hello There!

We know that Maria earned $450 in a total of 5 days so we need to find out how much money she earns in just 1 day.

To find this, we just divide 450 “the amount of money Maria earns in 5 days” by 5 “number of days it takes for Maria to earn $450”

“450 ÷ 5 ≈ 90”

Maria earns around $90 in just 1 day.

Morgarella [4.7K]3 years ago

5 0

It’s 90 a per day for 5 days

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2 years ago

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

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What percentage of full-term babies are between 19 and 21 inches long at birth?

The proportion is the p-value of Z when X = 21 subtracted by the p-value of Z when X = 19. Then

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$Z = \frac{21 - 20.5}{0.9}$

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$Z = \frac{19 - 20.5}{0.9}$

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