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Please solve these coin problems: 1) James bought 80 postage stamps for which he paid $18.40. Some were 1 cent stamps and some were 33 cent stamps.how many of each kind did he buy? 2) a postal clerk sold
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Oct 25, 2015
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Please solve these coin problems:
1) James bought 80 postage stamps for which he paid $18.40. Some were 1 cent stamps and some were 33 cent stamps.how many of each kind did he buy?
2) a postal clerk sold 75 stamps for $19.90. Some were 20 cent and some were 34 cent stamps. How many of each kind did he sell?
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1)
Solving from system of equations:
x- amount of 1 cent stamps
y- amount of 33 cent stamps
2)
x- amount of 20 cent stamops
y-amount of 34 cent stamps
From system of equations:
Mark Vincze
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Oct 29, 2015
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