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Phổ biến Word Problems >

The sum of two consecutive integers is-78.Find the largest integer.

Lời Giải

T h e s u m o f tw o co n sec u t i v e in t e g ers i s - 78. F in d t h e l a r g es t in t e g er .

Lời Giải

The number : - 38 \frac{1}{2}

Các bước giải pháp

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x + x + 1 = - 78

Giải

x + x + 1 = - 78 : x = - \frac{79}{2}

x + 1 = - \frac{79}{2} + 1 = - \frac{77}{2}

Chuyển phân số không thực sự thành hỗn số:

\frac{77}{2} = 38 \frac{1}{2}

The number : - 38 \frac{1}{2}

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