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Popular >

Find two consecutive integer whose sum is 45

Solution

Find two consecutive integer whose sum is 45

Solution

The number : 5 or - 4 \frac{1}{2}

Solution steps

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

(x + 1) (x + x + 1) = 45

Solve

(x + 1) (x + x + 1) = 45 : x = 4, x = - \frac{11}{2}

Plug in

x = 4 : 5

Plug in

x = - \frac{11}{2} : - \frac{9}{2}

Convert improper fractions to mixed numbers:

\frac{9}{2} = 4 \frac{1}{2}

The number : 5 or - 4 \frac{1}{2}

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