3 years ago

Solve: the sum of two numbers is 70. one number is 4 times the other. what are the two numbers?

1 answer:

8 0

Lets say two numbers are x and y

x+y=70-----------------------eq1

x=4y--------------------eq2

4y+y=70
5y=70
y=70/5
y=14

then x=4*14

x=56

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