Asked by Gigi

john has a total of 18 stamps which consists of 25 cents and 2 cent stamps they have a value of $2.20 how many of each do you have?

Answers

Answered by PsyDAG
x = 18 - y

.25x + .02y = 2.20

Substitute 18-y 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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