Answers

2015-12-10T07:06:09+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
We will let
x = first number
y = second number
1/x = reciprocal of the first number which is larger
1/y = reciprocal of the second number

(1)  1/x + 1/y = 7
       1/y = 7 - 1/x

(2)  1/x = 1/y + 7/3       
       1/x = (7 - 1/x) + 7/3
       1/x = 7 + 7/3 - 1/x
       1/x + 1/x = (21+7)/3 - 1/x
       2/x = 28/3
       28x = 6
       x = 6/28
       x = 3/14

(1) 1/x + 1/y = 7
      1/(3/14) + 1/y = 7
       14/3 + 1/y = 7
       1/y = 7 - 14/3
       1/y = (21-14)/3
       1/y = 7/3
       7y = 3
       y = 3/7

Therefore the two numbers are 3/14 and 3/7.




0