|
There are 180 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 670 cents. How many 4-cent stamps are there?
There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?
There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 6-cent stamps are there?
There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 930 cents. How many 4-cent stamps are there?
There are 190 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?
|
There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 530 cents. How many 4-cent stamps are there?
There are 220 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1530 cents. How many 4-cent stamps are there?
¿À´Ã 7¿øÂ¥¸® 6¿øÂ¥¸® ¿ìÇ¥ ÃÑ 230 ÀåÀ» »ç°í, 1530 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 7¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?
There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 7-cent stamps are there?
There are 150 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 850 cents. How many 4-cent stamps are there?
|