|
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 130 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 800 cents. How many 8-cent stamps are there?
There are 200 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1150 cents. How many 6-cent stamps are there?
There are 190 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1310 cents. How many 8-cent stamps are there?
There are 150 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 950 cents. How many 7-cent stamps are there?
|
There are 230 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1500 cents. How many 6-cent stamps are there?
There are 190 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1170 cents. How many 8-cent stamps are there?
There are 190 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1260 cents. How many 6-cent stamps are there?
There are 180 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?
There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1510 cents. How many 5-cent stamps are there?
|