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Phổ biến Word Problems >

Three consecutive odd integers sum to-45. What is the least of the 3 integers?

Lời Giải

T h ree co n sec u t i v e o dd in t e g ers s u m t o - 45. Wha t i s t h e l e a s t o f t h e 3 in t e g ers ?

Lời Giải

The smallest number : - 17

Các bước giải pháp

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

A.T.Q.:

x + x + 2 + x + 4 = - 45

Giải

x + x + 2 + x + 4 = - 45 : x = - 17

x + 2 = - 17 + 2 = - 15

x + 4 = - 17 + 4 = - 13

Select the smallest solution:

- 17

The smallest number : - 17

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