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davidleew24
18.07.2019 •
Mathematics
Afarmer grows 105 pounds of apples. he sells them to a grocer who divides them into 2 pound and 3 pound bags. if the grocer uses ten more of one sized bags than the other, how many bags of each did he use? i think there are two answers but i want to make sure
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Ответ:
Case 1: If farmer used 10 more 2 pound bags, then x-y=10 and 2x+3y=150. From the first equation x=10+y and from the second 2(10+y)+3y=150 we obtain that 5y+20=150, then 5y=130 and y=26. Thus, x=36.
Case 2: If farmer used 10 more 3 pound bags, then y-x=10 and 2x+3y=150. From the first equation y=x+10 and 2x+3(x+10)=150. So, we have 5x+30=150 and 5x=120, x=24 and y=34.
There are two possible answers: 1. 36 two pound bags and 26 three pound bags; 2: 24 two pound bags and 34 three pound bags.
Ответ: