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Lauren's age is half of Joe's age. Emma is four years older than Joe. The sum of Lauren, Emma, and Joe's age is 80. How old is Joe?

Solution

Lauren's age is half of Joe's age. Emma is four years older than Joe. The sum of Lauren, Emma, and Joe's age is 80. How old is Joe?

Solution

Joe^{'} s age is : 30 \frac{2}{5}

Solution steps

Translate the problem into an equation:

\frac{1}{2} x + x + 4 + x = 80

Solve for

x, \frac{1}{2} x + x + 4 + x = 80 : x = \frac{152}{5}

Convert improper fractions to mixed numbers:

30 \frac{2}{5}

Joe^{'} s age is : 30 \frac{2}{5}

Popular Examples

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