Homework Help: math percents

Posted by marko on Thursday, March 1, 2012 at 8:21pm.

Can you check these?
18% of 90 is what number?

i got 16.2

what number is 41% of 800?
i got: 1951.22

what number 5% of 522?
i got : 10440

70% of 279 is what number?
i got: 195.3

what number is 90% of 13?
i got : 14.44

9% of 351 is what number?
i got: 32

36% of 95 is what number?
i got 34.2

what number is 56% of 48?
i got: 85.71

96% of what number is 24?
i got 25

40% of what number is 30?
i got 75

50.4 is 36% of what number ?
im stuck

12% of what number is 72?
i got 6

12.8 is 32% of what number?
im stuck

684 is 95% of what number?
i got: 720

72% of what number is 630?
i got: 875

math percents - bobpursley, Thursday, March 1, 2012 at 8:24pm
first is correct, next two wrong, next right,
then this what number is 90% of 13?
i got : 14.44 is wrong
next two right, then wrong,

I would recheck them all.
math percents - Marko, Thursday, March 1, 2012 at 8:32pm
Do u have website that explains this
math percents. Mrs sue - Marko, Thursday, March 1, 2012 at 8:52pm
It bought I understood this ? Can u check
math percents - Writeacher, Thursday, March 1, 2012 at 9:35pm
The word "of" usually indicates the need to multiply:

90 x 0.18 = 16.2
800 x .41 = ??

http://www.aaamath.com/
Click on Decimals at the left and read.

Then go here to check your work:
http://www.wolframalpha.com/

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