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Iteru [2.4K]
3 years ago
12

Ronald is calculating the time required to fill the swimming pool at school. He found that it takes 9 minutes to fill the swimmi

ng pool with 81 gallons of water. At what rate does the swimming pool fill, in gallons per minute?
Mathematics
2 answers:
PtichkaEL [24]3 years ago
8 0

Answer:

9

Step-by-step explanation:

81 gallons per 9 minutes

This can be thought of as a fraction:

\frac{81gallons}{9 minutes}

divide the top and bottom of the fraction by 9 to make the bottom 1

\frac{9 gallons}{1 minute}

remove the gallons per minute to a separate fraction

9 \frac{gallons}{minute}

alexdok [17]3 years ago
8 0

Answer:

It takes 9min

Step-by-step explanation:

9min:8g

 ÷9  ÷9

1min:9g

The swimming pool fills at 9 gallons per minute.

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Next number in the sequence 1 4 9 16 25
Anarel [89]

The next number in the sequence is 36.

Starting from 1, the number increases by 3, 1 + 3 = 4. But the next number, the number it's being increased by increases by 2. 3 + 2 = 5, 4 + 5 = 9. And again, 5 + 2 = 7, 7 + 9 = 16. And again. 7 + 2 = 9, 16 + 9 = 25. Therefore, it is increased to + 11, and the next number is 36.

I hope this helped, and you have a great day!

3 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

We conclude that the price is 3.5 times the number of board games.

Hence, option B is true.

Step-by-step explanation:

We know that when y varies directly with x, the equation is

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k = y/x

where 'k' is called the proportionality constant.

From the table,

For the point (2, 7)

k = y/x

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For the point (4, 14)

k = y/x

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For the point (5, 17.50)

k  = y/x

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For the point (9, 31.50)

k  = y/x

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From the above calculations, we computed that the value of the proportionality constant remains the same.

Thus, the table of numbers represents a proportional relationship.

Therefore, the equation becomes

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Hence, option B is true.

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Step-by-step explanation:

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