Find two consecutive integer whose sum is 45

해법

F in d tw o co n sec u t i v e in t e g er w h ose s u m i s 45

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

솔루션 단계

Represent the numbers with

x

First number : x

Consecutive number : x + 1

A.T.Q.:

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

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

해결 :

x = 4, x = - \frac{11}{2}

x = 4

끼우다 :

5

x = - \frac{11}{2}

끼우다 :

- \frac{9}{2}

부적절한 분수를 혼합 숫자로 변환:

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

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