|
There are 150 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 530 cents. How many 3-cent stamps are there?
There are 140 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?
There are 220 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1720 cents. How many 7-cent stamps are there?
There are 210 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 5-cent stamps are there?
There are 200 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?
|
There are 160 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1020 cents. How many 6-cent stamps are there?
There are 130 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 7-cent stamps are there?
¿À´Ã 5¿øÂ¥¸® 4¿øÂ¥¸® ¿ìÇ¥ ÃÑ 160 ÀåÀ» »ç°í, 720 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 5¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?
There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1620 cents. How many 6-cent stamps are there?
There are 220 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1670 cents. How many 8-cent stamps are there?
|