|
There are 220 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1370 cents. How many 8-cent stamps are there?
There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?
There are 170 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 7-cent stamps are there?
There are 240 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2030 cents. How many 8-cent stamps are there?
There are 190 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?
|
There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1470 cents. How many 8-cent stamps are there?
There are 190 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 7-cent stamps are there?
There are 260 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?
There are 150 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 990 cents. How many 8-cent stamps are there?
There are 240 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1790 cents. How many 7-cent stamps are there?
|