Adding percentages

what is whole (X)?

Percents can be added directly together if taken from the same whole, which means they have the same base amount. You would add the two percentages to find the total amount.

Correct answer:

X =  18

Step-by-step explanation:

0.55·X+0.36·X+0.88·X+0.71·X+X= 63

3.5X = 63

X = 63/3.5 = 18

X = 18

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