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mrashrafkotkaat
12.07.2019 •
Mathematics
Xian and his cousin kai both collect stamps. xian has 64 stamps, and kai has 72 stamps. the boys recently joined different stamp-collecting clubs. xian's club will send him 12 new stamps per month. kai's club will send him 8 new stamps per month. after how many months will xian and kai have the same number of stamps? how many stamps will each have? after __ months xian and his cousin will have each.
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Ответ:
After 2 months Xian and his cousin will have 88 stamps each.
Explanation
Suppose, Xian and Kai will have the same number of stamps after
months.
Xian has 64 stamps, and Kai has 72 stamps. Xian's club will send him 12 new stamps per month and Kai's club will send him 8 new stamps per month.
So, the total number of stamps Xian will have after
months ![=64+12t](/tpl/images/0079/8162/e1c2c.png)
and the total number of stamps kai will have after
months ![= 72+8t](/tpl/images/0079/8162/03401.png)
As, they will have same number of stamps after
months, so...
So, they will have same number of stamps after 2 months.
If
, then....
and![72+8t= 72+8(2)= 72+16= 88](/tpl/images/0079/8162/a9825.png)
So, each will have 88 stamps after 2 months.
Ответ:
rfvtgbnhjmkinjhbgvf
Step-by-step explanation:
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