the 差 between two numbers is 9. Find the numbers if their sum is 46

解

t h e d i ff ere n ce b e tw ee n tw o n u mb ers i s 9. F in d t h e n u mb ers i f t h e i r s u m i s 46

The numbers : 27 \frac{1}{2}, 18 \frac{1}{2}

解答ステップ

Represent the numbers with

x and y

number 1 : x

number 2 : y

A.T.Q.:

x - y = 9

x + y = 46

x - y = 9, x + y = 46 : x = \frac{55}{2}, y = \frac{37}{2}

仮分数を帯分数に変換する:

\frac{55}{2} = 27 \frac{1}{2}

仮分数を帯分数に変換する:

\frac{37}{2} = 18 \frac{1}{2}

The numbers : 27 \frac{1}{2}, 18 \frac{1}{2}