(40+20)÷(3-2),
=60÷1,
=60(厘米),
60×2+40,
=120+40,
=160(厘米).
答:这根绳子长160厘米.
用一根绳子绕柱子2圈则绳子多40厘米,如果绕柱子3圈则绳子少20厘米.这根绳子有多长?
用一根绳子绕柱子2圈则绳子多40厘米,如果绕柱子3圈则绳子少20厘米.这根绳子有多长?
数学人气:702 ℃时间:2019-10-03 21:15:28
优质解答
我来回答
类似推荐
猜你喜欢
- 1如图,在凸四边形ABCD中,∠B=∠D=90°,∠C=120°,AB=3,BC=根号3,则AD=?
- 2( )Last week we ______ some interesting animals.A.told of B.learned about C.learned from D.talk
- 3一辆客车一辆货车同时从甲乙两地相向开出客车每时行75千米货车每时行65千米在离中点25千米相遇甲乙隔几千
- 4将一根绳子对折N次后从中间剪一刀,绳子变成多少段
- 5(a²-b²)²÷(a+b)²等于多少
- 6there were many people KILLED in the accident
- 7This pair of jeans is very nice.How much _____?A is it B are they 选哪个?
- 8几个7年级的英语句子单词填空(括号里填字母),
- 9如图,在平行四边形ABCD中,E为CD上一点,DE:CE=2:3,连结 AE、BE、BD,且AE与BD交于点
- 10It's a card.There are some picture on it.We can send it to your firend from the post office.______