929  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 220 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1460 cents. How many 7-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1060 cents. How many 6-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?



There are 260 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1840 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1350 cents. How many 8-cent stamps are there?



¿À´Ã 4¿øÂ¥¸® 3¿øÂ¥¸® ¿ìÇ¥ ÃÑ 220 ÀåÀ» »ç°í, 770 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 4¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 240 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 4-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

929    140 80 130 80 130 ( 560 )   140 100 110 130 150 ( 630 )   [[ 1190 ]]