Asked by alzo
The sum of two decimals is 100. Their difference is 18.50. What are the numbers?
Answers
Answered by
PsyDAG
x = y - 18.5
x + y = 100
Substitute y-18.5 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
x + y = 100
Substitute y-18.5 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
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