SOLUTION: a number is 2/5 times another number. if their sum is 70. find the numbers

Question 927461: a number is 2/5 times another number. if their sum is 70. find the numbers
Found 2 solutions by TimothyLamb, Stitch:
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = (2/5)y
x + y = 70
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put the system of linear equations into standard form
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x - 0.4y = 0
x + y = 70
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = 20
y = 50
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Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!

"A" by itself is the same as writing 1A or A

Combine like terms

Multiply both sides by 5/7 to cancel out the 7/5

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Now take (2/5)x 50 to get the second number

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