vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

the product of two consecutive positive even integers is 120. find the value of the lesser integer.

Lời Giải

t h e p ro d u c t o f tw o co n sec u t i v e p os i t i v e e v e n in t e g ers i s 120. f in d t h e v a l u e o f t h e l esser in t e g er .

Lời Giải

The smallest number : 10

Các bước giải pháp

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

x (x + 2) = 120

Giải

x (x + 2) = 120 : x = 10, x = - 12

Select positive solutions:

10

x + 2 = 10 + 2 = 12

Select the smallest solution:

10

The smallest number : 10

Ví dụ phổ biến

If you borrow 421 for 9 years at an interest rate of 4%,how much interest will you pay?seven less than the product of 4 and a number is equal to 9 The sum of two numbers is 64. The larger number is 8 more than the smaller number. What are the numbers?tom is 9 years older than jerry. five years ago, the sum of their ages was 48. how old are they now?Peter's height is 3.5 % more than John's height.:The hiệu between their heights is 5.6cm :Find Peter's height.