|
There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?
There are 190 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 6-cent stamps are there?
There are 160 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 530 cents. How many 3-cent stamps are there?
There are 130 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 730 cents. How many 7-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 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1410 cents. How many 8-cent stamps are there?
There are 190 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?
¿À´Ã 3¿øÂ¥¸® 6¿øÂ¥¸® ¿ìÇ¥ ÃÑ 170 ÀåÀ» »ç°í, 780 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 3¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?
There are 260 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1480 cents. How many 4-cent stamps are there?
There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1120 cents. How many 4-cent stamps are there?
|