Asked by Jiayi
A postal clerk sold some 15c stamps and some 25c stamps .altogether ,15 stamps were sold for a total cost of S3.15 .how many of each type of stamps were sold?
Answers
Answered by
oobleck
x+y = 15
15x+25y = 315
Now just solve for x and y.
15x+25y = 315
Now just solve for x and y.
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