The lengths (长度)of two rivers are in the ratio 12:7.The lenght of the longer one is 42.Find the length of the shorter one.这是一道数学应用题,请大家翻译,并回答!

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The lengths (长度)of two rivers are in the ratio 12:7.The lenght of the longer one is 42.Find the length of the shorter one.这是一道数学应用题,请大家翻译,并回答!
The lengths (长度)of two rivers are in the ratio 12:7.The lenght of the longer one is 42.
Find the length of the shorter one.
这是一道数学应用题,请大家翻译,并回答!

The lengths (长度)of two rivers are in the ratio 12:7.The lenght of the longer one is 42.Find the length of the shorter one.这是一道数学应用题,请大家翻译,并回答!
翻译:两条河的长度比是12:7,相对较长的河的长度是42,问相对短的河的长度~
42÷12×7=24.5

两条河长度比是12比7,长的一条河的长度是42
算出短的河流的长度

两河之比是12:7,长河为42,求短河。答案是24.5

24.5

两条河的长度之比为12:7.较长的那条河长为42.请问较短的那条河长度是多少?
答案:24.5请写公式42× 7/12 = 24.57/12 什么意思?12分之7的意思,写出来的话应该写成分数形式,7在上面,12在下面,中间一横是分数线;电脑上打不出来,只能这样表示。...

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两条河的长度之比为12:7.较长的那条河长为42.请问较短的那条河长度是多少?
答案:24.5

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