解英文數一條
2006-10-27 6:10 am
Edward divides 60 marbles into two groups. If 7 times the number of marbles in the smaller group is equal to 3 times that in the larger group, find the number of marbles in the smaller group.
回答 (5)
2006-10-27 6:21 am
✔ 最佳答案
中文翻譯:愛德華把60粒波子分成兩份. 如果小份波子數目的7倍等如大份波子數目的3倍, 求小份波子數目.
Let y be the number of marbles in the smaller group, then (60-y) be the number of marbles in the larger group.
設y是小份波子數目, 則(y-3) 是大份波子數目
7y = 3 (60-y)
7y = 180 - 3y
10y = 180
y = 18
Therefore, the number of marbles in the smaller group is 18.
因此, 小份波子數目是18粒
參考: myself
2006-10-27 5:41 pm
Let x be the numbers of marble in the smaller group
then (60 - x) i sthe number of marble in the larger group
thus, 7x = 3(60 - x)
7x = 180 - 3x
10x = 180
x = 18
the number of marble in the smaller group is 18
then (60 - x) i sthe number of marble in the larger group
thus, 7x = 3(60 - x)
7x = 180 - 3x
10x = 180
x = 18
the number of marble in the smaller group is 18
2006-10-27 6:30 am
愛德華劃分60塊大理石成二個小組。 如果7倍大理石的數量在更小的小組是相等的到3乘那在更大的小組， 看到大理石的數量在更小的小組。
7x=3(60-x)
7x=180-3x
10x=180
x=18
7x=3(60-x)
7x=180-3x
10x=180
x=18
2006-10-27 6:14 am
let x be the number of marbles of small group
then number of large group is 60-x
7x=3(60-x)
7x=180-3x
10x=180
x=18
therefore , no of small group is 18
2006-10-26 22:15:15 補充：
should be no. of marbles in the samll group is 18
then number of large group is 60-x
7x=3(60-x)
7x=180-3x
10x=180
x=18
therefore , no of small group is 18
2006-10-26 22:15:15 補充：
should be no. of marbles in the samll group is 18
2006-10-27 6:12 am
Edward divides 60 marbles into two groups. If 7 times the number of marbles in the smaller group is equal to 3 times that in the larger group, find the number of marbles in the smaller group. !
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