72% of what number is 1080?

Mathematics

1 answer:

AysviL [449]4 years ago

7 0

Answer: 1500

Step-by-step explanation:

we can translate the sentence into an easy equation:

72/100 * x = 1080

Then we can solve for x by multiplying by 100/72. But wait! That can be simplified! We can cancel 4 out of both the top and the bottom to get the equivalent fraction, 25/18.

x = 1080 * 25/18

1080 and 18 can cancel since 1080/18 = 60

x = 60 * 25/1 ==> x = 1500

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lord [1]

Hello from MrBillDoesMath!

Answer:

41 sqrt(3)

Discussion:

My first reaction to the problem was:

sqrt(27) = sqrt ( 3 * 9) = 3 sqrt(3) and

sqrt(48) = sqrt (3*16) = 4 sqrt(3).

So...

7 * sqrt(27) + 5 sqrt(48) =

7 * (3 sqrt(3)) + 5 * (4 sqrt(3)) =

21 sqrt(3) + 20 sqrt(3) =

41 sqrt(3)

Regards,

MrB

P.S. I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!

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