Question

78 is 92% of what?

Answer 1

Approximately `84.78`

Explanation:

`92%` can be expressed by the decimal number `.92`. The word "of" in the question means you are multiplying, so the question is really asking, `.92` times what number equals 78? To solve this algebraically, we will use the variable `x` to represent the unknown number:

`.92 * x = 78 | .92x = 78`

To solve for `x`, all we need to do is divide each side by the coefficient of `x`, or the number by which the variable is multiplied, to get the variable by itself:

`(.92x)/.92 = 78/.92 | x = 84.7826...`

Note that I rounded the answer to 2 decimal places. Normally, you should follow any specific rounding instructions given on the test, but if none are given, it is generally acceptable to round to the hundredths digit.