Question
7 is what percent of 9?
Answer
7 is 77.78% of 9.
Explanation
Step 1: Translate the words into an equation.
| 7 | is | what percent | of | 9 |
| 7 | = | x | $ \cdot $ | 9 |
Step 2: Solve for $ x $.
$$ \begin{aligned} 7 &= x \cdot 9 \\[1.2 em] 9 \cdot x &= 7 \\[1.2 em] x &= \dfrac{ 7 }{ 9 } \\[1.2 em] x &= 0.7778 \end{aligned} $$Step 3: Express $ x $ as a percentage.
$$ x = 0.7778 = 0.7778 ~~\cdot~~ 100 \% = 77.78 \% $$This page was created using
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