575  Stamp
How many stamps? 1

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There are 160 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 820 cents. How many 7-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 900 cents. How many 6-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1420 cents. How many 7-cent stamps are there?



There are 130 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 600 cents. How many 5-cent stamps are there?

There are 180 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 800 cents. How many 3-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1100 cents. How many 6-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1780 cents. How many 6-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 780 cents. How many 5-cent stamps are there?

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