1) The weights of copper and zine of an alloy are in the ratio 17:11. How many kg of copper are there in an alloy of 35kg?
2)The monthly salary of Peter is $24000. Given that the ratio of rent: expenditure: savings = 3:5:2, find his total savings in one year.
列式PLZ*
MATHS (20 FUN) Ratio
2007-10-28 2:15 am
回答 (2)
2007-10-28 6:01 am
✔ 最佳答案
1)17:11 = x :35
11x = 595
x = 54.09
copper has 54.09kg
2)
24000 ﹝2/(3+5+2)﹞(12)
= 24000 (2/10)(12)
= $57600
his total savings in one year is $57600
參考: me
2007-10-28 2:29 am
35:17 = X :11
X =2
24000 X 12 X2 / 10
=57600
2007-10-27 20:41:48 補充：
X=22 唔係2 之前打錯字
X =2
24000 X 12 X2 / 10
=57600
2007-10-27 20:41:48 補充：
X=22 唔係2 之前打錯字
收錄日期: 2021-04-13 14:11:43
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https://hk.answers.yahoo.com/question/index?qid=20071027000051KK03573