3 years ago

Hannah can type 450 words in 6 minutes. How many words per minute can she type?

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

That means she type 450/6 minutes. Take 450 and divide it by 6.

450/6 = 75

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If a hiker starts at sea level and increases her elevation at a rate of 1 foot per minute what will her elevation be in 20 minut

sattari [20]

Answer:

20 feet above sea level.

Explanation:

This can be solved by looking at the Rate of Change. It is given that for ONE minute that passes by, her elevation increases by ONE foot.

With this rate, after 20 minutes, the elevation can be shown as:

20 min × 1 foot= 20 feet.

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2 years ago

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A librarian knows that 45% of the books currently checked out will NOT be returned on the due date. The library has a

malfutka [58]

Answer:

79 books

Step-by-step explanation:

45% books not returned = 55% books will be returned

145 books currently checked out

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3 years ago

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3 years ago

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spin [16.1K]

Answer:

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2 years ago

Sam earned $40 on his investment of $400. He earned 5% interest on his investment. How long did Sam leave his money in the bank?

gogolik [260]

Answer:

2yrs

Step-by-step explanation:

Given parameters:

Amount of interest earned = $40

Principal = $400

Interest rate = 5%

Unknown:

Time taken for the money to be in bank = ?

Solution:

The formula for interest is given as:

I = $\frac{PRT}{100}$

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T is the time

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2 years ago