The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number. (Hint: write a

Question

Shalnov [3]

3 years ago

9

The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number. (Hint: write a

system to determine the correct numbers)

Mathematics

1 answer:

navik [9.2K] · Answer 1 · 2022-07-25T17:42:36+03:00

navik [9.2K]3 years ago

5 0

(x+y) / 2 =7
multiply both sides by 2
x+y=14

3x=.5y
divide both sides by .5
6x=y

plug 6x in for y

x+(6x)=14
simplify
7x=14
divide both sides by 7
x=2