2 years ago

If the mean is 7, what is the total amount?

Mathematics

1 answer:

tatuchka [14]2 years ago

3 0

Answer:

mean if 7

Step-by-step explanation:

the mean is 7

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How old am I if 250 reduced by 5 times my age is 50?

Korolek [52]

250 - 5(x) = 50

250 (-250) - 5x = 50 (-250)

-5x = -200

-5x/-5 = -200/-5

x = 40

hope this helps

you are 40 years old!

4 0

3 years ago

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The weight of a box varies directly as the volume of the box. If a 138-pound box has a volume of 23 gallons, what is the weight

kolezko [41]

Answer:

D. 150 pounds

Step-by-step explanation:

For be directly proportional, it has to be that as one value increases the other does it equally, so

If 138 pound box has a volume of 23 gallons for 25 gallons ?. For being directly proportional tha value must be higest

138 → 23 $x=\frac{25*138}{23} = 150$

x → 25

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2 years ago

4.89 gallons of milk is sold for $12.79. If you have $21.44 in your wallet. How many

Mariulka [41]

Answer:

You can buy 8.18 gallons of milk.

Step-by-step explanation:

12.79/4.89 = 2.62

21.44/2.62 = 8.18

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3 years ago

Bridget was thinking of a number. Bridget doubles it, then adds 15 to get an answer of 16.4. What was the original number?

lyudmila [28]

0.7 is the correct number:)

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3 years ago

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What is ?5/8 times ?.2 and equals ?8

aliya0001 [1]

First you put a 1 under the 2.Then you multiply 85*2 and you get 170.Next you multiply 8.2*1 and you get 8.2.Finally, you divide 170 by 8.2 and get 20.73.

So, your answer to 85/8 times 8.2 = 20.73.

Hope that helped.

7 0

3 years ago