141  Stamp
How many stamps? 1

Name : _________________

refresh

There are 150 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1150 cents. How many 8-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1090 cents. How many 5-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1210 cents. How many 3-cent stamps are there?

There are 180 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1350 cents. How many 5-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 800 cents. How many 5-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1230 cents. How many 5-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1040 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++