2 years ago

45 is 25% of a number. find the number.

Mathematics

2 answers:

neonofarm [45]2 years ago

8 0

25 × x = 45

or 25÷100 × x= 45

max2010maxim [7]2 years ago

6 0

25 × x = 45

or 25÷100 × x= 45

multiplying both sides by 100 and dividing both sides by 25, we have x = 45×100÷25

therefore, x = 180

( if you use a calculator simply enter 45×100÷ 25)

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<span>Part A: Solve A = (x + 23) for x.

A = x + 23

=> A - 23 = x + 23 - 23

=> A - 23 = x

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Part B: Determine the value of x when A = 108

Replace the value of A in the expression x = A - 23

x = 108 - 23 = 75

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-np - 90 > 30

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=> - 90 > 30 + np

=> -90 - 30 > 30 - 30 + np

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