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Mamont248 [21]
2 years ago
11

7r + 2 - 3r = -2 plsss

Mathematics
1 answer:
KonstantinChe [14]2 years ago
8 0

Answer:

Combine like terms

4r+2=-2

Subtract 2 from both sides

4r=-4

Divide 4 by from both sides

r=-1

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The quantity of the liquid in Richard's tank after 20 minutes will be 120 gallons and in Jason's tank will be 240 gallons.

<h3>What are gallons?</h3>

A gallon is a British unit which is used for the measurement of liquids that is equal to eight pints. In Britain, it is equal to about 4.546 litres. In America, it is equal to about 3.785 litres.

It is given in the question that:-

Richard fills his pool at a rate of 6 gallons per minute.

Jason's pool already contains 200 gallons, and he fills it at a rate of 2 gallons per minute.

After 20 minutes the amount of liquid in the tank will be:-

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For Jason= 2 gallons per minute  x  20  =40 gallons

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