SOLUTION: the sum of two numbers is 90. the first number is 2/3 of the second number. what are the numbers?
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Question 532754: the sum of two numbers is 90. the first number is 2/3 of the second number. what are the numbers?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
given:
(1)
(2)
---------------
(2)
(2)
Multiply both sides of (1) by
and add the equations
(2)
(1)
and, since
(1)
(1)
(1)
The numbers are 36 and 54
check:
(2)
(2)
(2)
(2)
OK
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