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Please help!

A) 2 is 12.5% of a number
B) 2/3 of 27 equal 25% of a number

User Exceptions
by
6.0k points

1 Answer

3 votes

Let’s begin with Part A. We can solve this by setting up an equation. We know that 12.5% = 0.125 because percentages are equivalent to decimals multiplied by 100 (or moving the decimal point two places to the right). With this in mind, we can make our left side of the equation, 2, equal to our right side of the equation, 0.125 multiplied by an unknown number x.

2 = 0.125x

To solve this equation and find our unknown value, we must divide both sides by 0.125.

16 = x

Therefore, 2 is 12.5% of the number 16 (your answer).

Now, we should do something similar for Part B.

Our equation should be the following:

2/3(27) = 0.25x, where x is our unknown variable.

We should simplify the left side of the equation by multiplying together the 2 factors.

18 = 0.25x

Finally, we should divide both sides of the equation by 0.25 to get the variable x alone.

x = 72

Thus, the answer to Part A is 16 and the answer to Part B is 72.

Hope this helps!

User Zizou
by
7.7k points
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