請幫忙指教以下數學的列式
divide $102 among 3 girls A,B,C .so that A gets twice as much as B and C gets 1.5 times as much as A, How much does each get?
請指教數學題(幫忙正確列式)
2007-07-05 8:32 pm
回答 (4)
2007-07-05 8:37 pm
✔ 最佳答案
let B gets $x 102 = 2x + x + 1.5(2x)
x=17
A gets $34
B gets $17
C gets $51
2007-07-06 1:39 am
Let A gets $X,
X+0.5X+1.5X=102
3X=102
X=34
Therefore, A gets $34, B gets 34*0.5=$17, C gets 34*1.5=51.
X+0.5X+1.5X=102
3X=102
X=34
Therefore, A gets $34, B gets 34*0.5=$17, C gets 34*1.5=51.
2007-07-05 8:42 pm
假設B是X
X+2X+3X=102
6X=102
X=17
B=17
A=34
C=51
X+2X+3X=102
6X=102
X=17
B=17
A=34
C=51
2007-07-05 8:37 pm
A=2B
C=1.5A=1.5(2B)
2B+B+1.5(2B)=102
2B+B+3B=102
6B=102
B=17
A=2(17)=34
C=1.5(34)=51
∴A gets $34, B gets $17, C gets $51.
C=1.5A=1.5(2B)
2B+B+1.5(2B)=102
2B+B+3B=102
6B=102
B=17
A=2(17)=34
C=1.5(34)=51
∴A gets $34, B gets $17, C gets $51.
參考: By CY
收錄日期: 2021-04-12 20:04:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070705000051KK01320