54/100, x15 is 8.10. 54-8.10 is 45.90
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75% of 54 = 54 x 0.75 = 40.5 and the person pays only 54-40.5 = 13.5
40% = 0.4 Therefore, 40% off $90= $90 - (0.4 x $90) = $54
To calculate 15 percent of 360, you would first convert 15 percent to a decimal by dividing it by 100, which gives you 0.15. Then, you multiply 0.15 by 360 to find the answer. Therefore, 15 percent of 360 is 54.
0.30 x 54= 16.2 54 - 16.2= 37.8
The fraction of 54 percent is 54/100 or 27/50.