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人気のある Word Problems >

5 The sum of two numbers is 30 and their 差 is 12 .Write two equations and find the numbers

解

5 T h e s u m o f tw o n u mb ers i s 30 an d t h e i r d i ff ere n ce i s 12 . W r i t e tw o e q u a t i o n s an d f in d t h e n u mb ers

解

The numbers : 9, - 3

解答ステップ

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

5 (x + y) = 30

x - y = 12

5 (x + y) = 30, x - y = 12 : x = 9, y = - 3

The numbers : 9, - 3

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