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Shalnov [3]
2 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]2 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


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