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gayaneshka [121]
3 years ago
14

If 9/a = 7/a², then a=?

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0

Answer:

x = 7/9

Step-by-step explanation:

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A job can be done by 30 men in 15 days. How long would it take 10 men to do the same job?​
Vladimir79 [104]

Answer:

5 days

Step-by-step explanation:

This questions involves ratios, the job with 30 men can be done in 15 days, so the ratio from amount of men to amount of days the job will take to complete, it is 30:15. If we had 10 men instead of 30, 10 is one-third of 30, so you have to divide by 3 on each side of the ratio to get your answer.

If we do that we get the ratio 10:5.

Meaning that the 5 is the amount of days needed to be taken in order the complete the job.

Hope this helps!

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3 years ago
740% as a mixed number
alex41 [277]
740% as a fraction is 37/5.
37/5 as a mixed number is 7 2/5.

Hope this helps! Good luck.
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3 years ago
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Answer:

<h3>0.057 miles per minute</h3>

Step-by-step explanation:

2 miles and 35 minutes

= 2 miles / 35 minutes

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3 years ago
Sam is renting one of two cars to go on a 300-mile trip. The first car can travel 75 miles on 5 gallons of gas. The second car c
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First let’s establish a few things, The first car can travel 300 miles with 20 gallons of gas, if 14 gallons of gas costs 49.49 then for ever gallon of gas Sam is paying 3 dollars and 53.5 cents. That means for 20 gallons, Sam will need around 71$ for the entire trip if he uses the first car.
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Solve the equations shown above. Show your work by using the inverse operation.​
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X=12 and x=7 hope this helps !
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