770  Stamp
How many stamps? 1

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There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1410 cents. How many 8-cent stamps are there?



There are 130 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 5-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 7-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1330 cents. How many 8-cent stamps are there?



There are 140 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?

There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 890 cents. How many 5-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1320 cents. How many 7-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 8-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 750 cents. How many 3-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there?

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