the sum of two numbers is 48. if the smaller number is one fifth of the larger number, find the two numbers

解

t h e s u m o f tw o n u mb ers i s 48. i f t h e s ma ll er n u mb er i s o n e f i f t h o f t h e l a r g er n u mb er, f in d t h e tw o n u mb ers

The numbers : 8, 40

解答ステップ

Represent the numbers with

x and y

number 1 : x

number 2 : y

A.T.Q.:

x + y = 48

x = \frac{1}{5} y

x + y = 48, x = \frac{1}{5} y : x = 8, y = 40

The numbers : 8, 40