3 years ago

Two numbers have a difference of 0.7 and a sum of 1 . What are the numbers

1 answer:

Crank3 years ago

5 0

First number is f
Second number is s
f-s=.7
f+s=1
Using elimination, you could solve this.
-1(f-s=.7); eliminate the first number.
-f+s= -.7
f+s=1
2s=.3
s=.15
Now find the second number by plugging it in:
.15+s=1
1-.15=.85
The numbers are .15 and .85.

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