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3 years ago

A thermometer reading 72F is placed in a refrigerator where the temperature is a constant 38F.

Mathematics

1 answer:

dusya [7]3 years ago

8 0

Answer:

A) 42

B)7 1/2 minutes

Step-by-step explanation:

Well if you take 72 and subtract it by 60 you get 12. Then you take that 12 and divide it by 2 you get 6. Next you take 6 and multiply it by 7 and you get you answer which is 42.

So at this point you know that 7 minutes takes it down to 42 degrees. So 42 minus 3 and you get 39. 3 is half of 6. It goes down 6 degrees every minute so half of a minute would be 3 degrees.

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He spent $14.44 more on groceries this week than last week

<h3>How to determine the additional amount that was spent this week?</h3>

From the question, the given parameters are

Amount spent last week = $58.34

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The additional amount that was spent at the grocery store this week is calculated by subtracting the amount spent this week from the amount spent last week

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A thermometer reading 72*F is placed in a refrigerator where the temperature is a constant 38*F.

A thermometer reading 72F is placed in a refrigerator where the temperature is a constant 38F.