1.a=5b,c=2b,finda:b:c
2.an alloy is made of gold and copper.if 0.94 kg of the alloy contains 240 go gld find the ratio of the weights of gold and copper in the alloy
f.2 maths
2008-06-01 8:19 pm
回答 (1)
2008-06-01 9:17 pm
✔ 最佳答案
a=5ba/b=5/1
a:b=5:1
c=2b
c/b=2/1
c:b=2:1
a:b:c
5:1
1:2
5:1:2
a:b:c=5:1:2
第2題你係唔係打錯字?
參考: me
收錄日期: 2021-05-03 06:48:50
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