SOLUTION: the ratio of two numbers is 5 to 4 and their sum is 180 what is their difference?
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Question 821582: the ratio of two numbers is 5 to 4 and their sum is 180 what is their difference?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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x/y = 5/4
y = (4/5)x
x + y = 180
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put the system of linear equations into standard form
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(4/5)x - y = 0
x + y = 180
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0.8x - y = 0
x + y = 180
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https://sooeet.com/math/system-of-linear-equations-solver.php
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answer:
x= 100
y= 80
x - y = 20
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