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פּוֹפּוּלָרִי Word Problems >

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

פתרון

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 .

פתרון

The smallest number : 10

צעדי פתרון

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

x (x + 2) = 120

x (x + 2) = 120

פתור את:

x = 10, x = - 12

Select positive solutions:

10

x + 2 = 10 + 2 = 12

Select the smallest solution:

10

The smallest number : 10

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