Problema Solution
the sum of two numbers is 80 and their ratio is 3:5
Answer provided by our tutors
let 'x' and 'y' be the numbers
the sum of two numbers is 80
x + y = 80
their ratio is 3:5
x : y = 3 : 5
5x = 3y
by solving the system
x + y = 80
5x = 3y
we find
x = 30
y = 50
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