百度试题 结果1 题目60% of a number is 30. What's the number? A. 50 B. 60 C. 40 D. 70 相关知识点: 试题来源: 解析 A。设这个数为 x,则 60%x = 30,解得 x = 50。反馈 收藏
百度试题 结果1 题目If 40% of a number is 80, what is the number? A. 200 B. 220 C. 240 D. 260 相关知识点: 试题来源: 解析 A。设这个数为 x,40%x = 80,x = 80÷40% = 200 。反馈 收藏
If 45% of a number is 36, what is the number?Percentage:To solve these kinds of questions involving percentage, it's best to assume a variable say x as the number and find the percentage of x and evaluate it to the number given to us....
38% of a number is 133. What is the number? (a)340 (b)350 (c)360 (d)355 View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium NCERT Solutions for Class 10 English Medium ...
Given the base and the rate, one can compute the percentage (widely known as a portion, part or share) of the number by multiplying its base and rate, i.e. {eq}P = BR {/eq} where P is the percentage, B is the base and R is the rate....
(5).75% of a number is57, what is this number?相关知识点: 试题来源: 解析 最终答案是76。 题目要求计算一个数是多少,已知这个数的75%是57。 根据题意,可以用57除以75%得到这个数。 **计算过程:** 57 ÷ 75% = 57 ÷ 0.75 = 76反馈 收藏 ...
一个数的20%等于这个数的1/5,令n为这个数,1/5n=12,两边同时乘以5,得到n=60.n的30%等于3/(10)n=3/(10)*60=3*6=18,故B正确.故选B.20% of a number is equal to 1/5 of that number. Let n= the number 1/5n=12 Multiply both sides by 5n=6030% of n is equal to 3/(10)n=3/...
x% of a number is found by multiplying the number by x%. x% is just a fraction with the numerator x and the denominator 100. We have to use this information here.Answer and Explanation: Let the number be x. When this number is multiplied by 90%, we get 24. Therefore, we get ...
awhen you receive your sign in informtion,follow the directions in the email toreset your password 当您接受您时签到informtion,跟随方向在电子邮件toreset您的密码[translate] aIf 20% of a number is 12,what is 30% of the same number 如果20%数字是12,什么是30%同一个数字[translate]...
A.is; ,are B.is; is C.are; is D.are; are扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 A 句意:—你学校的学生人数是多少?—— 约有两千。他们许多都是从农村来的。the number of the students学生的人数,相当于一个整体数字,做主语时,谓语动词用单数,A number of (...