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If 15% of a number is 45 and 50% of the same number is 150, find 35% of that number.

2 Answers

4 votes

Answer:

then 15% of x=0.15x-45.x=45/0.15.x -300

User Rodrigo Zepeda
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5 votes

Answer:

35% of the number is 105.

Explanation:

If 150 is half of the number, the number must be 300. To find 35% of 300, you need to set up a proportion.

35/100 = x/300

x is the numerator in this case because 300 is the whole and x is part of the whole.

To find 35% of 300, you would need to cross multiply, which means you would multiply 35 and 300, and x and 100, and set up an equation.

35 x 300 = x x 100

10,500 = 100x

After this, we need to isolate the variable, which means you have to divide the whole equation by 100.

10,500/100 = 100x/100

10,500/100 = 105

105 is 35% of 300

User Jurka
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