It is given that the scale of a map is 2cm to 50 km.
If the actual distance between two cities is 210 km.
what is the distance between the cities on the map?
the answer is 8.4 cm.
but i need the steps.
thx a lot ><
maths 一题(Ratio and rate)
2013-04-08 6:39 am
回答 (2)
2013-04-08 6:56 am
✔ 最佳答案
s1 Unit is cm , 2 : 5,000,000s2 210 km = 21,000,000 cm
s3 2 : 5,000,000 = ans : 21,000,000
s4 5,000,000 * ans = 5.000.000 ans
s5 2 * 21,000,000 = 42,000,000
s6 5,000,000 ans = 42,000,000
s7 42,000,000 / 5,000,000 = ans
s8 ans = 8.4cm
2013-04-08 6:52 am
Let x cm be the distance between the cities on the map , then
x : 210 = 2 : 50
x / 210 = 1 / 25
x = 210/25
x = 8.4
The distance between the cities on the map is 8.4 cm.
x : 210 = 2 : 50
x / 210 = 1 / 25
x = 210/25
x = 8.4
The distance between the cities on the map is 8.4 cm.
收錄日期: 2021-04-21 22:26:52
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