题目
自行车和三轮车共有20辆,共有44个轮子,自行车和三轮车各有多少个轮子?求一元一次方程
提问时间:2021-01-24
答案
解设:自信车有x个,三轮车有(20-x)个
2x+3(20-x)=44
60-x=44
x=12
20-12=8
答:自行车有12个,三轮车有8个
对了,你这个题应该是求自行车和三轮车各有多少辆!
2x+3(20-x)=44
60-x=44
x=12
20-12=8
答:自行车有12个,三轮车有8个
对了,你这个题应该是求自行车和三轮车各有多少辆!
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
1,人们染上烟瘾,最终因吸烟使自己丧命.
最新试题
- 1《终不如车》这篇文言文的题目的答案
- 2Millions of chinese people provided food,clothes or money for the people in wenchuan,sichuan provin
- 3下面词语的近意词 急用!
- 4Yesterday Tom had a birthday party and I had many wines with a delicate f________.
- 5方程:8(0.9-x)=5.6
- 6《春风》 林斤澜
- 7已知31=3,32=9,33=27,34=81,35=243,36=729,37=2187,38=6561,…请你根据此规律推测320的个位数字是多少.
- 8SOS!急用!
- 9It is of little use learning by h( ) long lists of words and their meanings、
- 10故人具鸡黍
热门考点
- 1一道化学题目请教,大神进,
- 2请问用英语说"飞翔"怎么写?怎么读?
- 3设等差数列{an}的前n项和为Sn,若a1=-11,a4+a6=-6,则当Sn取最小值时,n等于( ) A.6 B.7 C.8 D.9
- 4一条水渠修了5,还剩240米没有修.这条水渠全长多少米?
- 5一辆小卡车的载重量是大车的3/4,一辆小卡车可载货9吨,大卡车的载货量是多少吨?
- 6The teacher tells us that we must study hard
- 7Peter has mended the leg of the chair today.对mended the leg of the chair today提问
- 8求翻译:his parents have set up a trust to look after the money he earns
- 9My mother goes to work by bus.否定回答、一般疑问句、两种回答、划线提问
- 10edison is a well-konwn inventor--so famous,indeed that he invented light