刷刷题APP(shuashuati.com)是专业的大学生刷题搜题拍题答疑工具,刷刷题提供What is the average (arithmetic mean) of 330, 360, and 390?A.360B.3177C.310 + 320 + 330D.327 + 357 + 387E.329 + 359 + 389的答案解析,刷刷题为用户提供专业的考试题库练习。一分钟将考试题
(2) °represents subtraction.<6>On Jane's credit card account, the average daily balance for a 30-day billing cycle is the average of the daily balances at the end of each of 30 days. At the b 30、eginning of a certain 30-day billing cycle, Jane's credit card account had a ...
If the ratio ofa tob is 1/2, thena/b = 1/2, so 2a =b ora =b/2. Since the ratio ofc tob is 1/3, thenc/b = 1/3, so 3c =b orc =b/3. Hence, the average ofa andc in terms ofb is (1/2)(a +c)= (1/2)(b/2 +b/3) = (1/2)(5b/6) = 5b/12...
正确答案:D解析:To get the average of y and z, you need to find half of the sum of y+ z. To obtain that number, first restate the first statement as an equation: x+y=80. Add that equation to z-x=60, so that x+y+z-x=80+60=y+z=140. The average of y and z is...
what is the average(mean) value of 2t-3t+4 over interval -1≤t≤1? 答案 这句话的意思是说 函数2t-3t+4在-1≤t≤1的范围内,平均值是多少 首先设f(t)=2t-3t+4,对f(t)求导,确定是否能在-1≤t≤1范围内取到最大值或者是最小值 f'(t)=6t(t-1),令f'(t)=0,所以t=1或0, 又因为...
百度试题 结果1 题目 The average of five numbers is14. If three of those numbers are 15, 18, and 21, what is the average of the remaining two numbers? 相关知识点: 试题来源: 解析 8 8 反馈 收藏
(2)The average (arithmetic mean) of j, k, and 14 is 10. 选项: A、 Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B、 Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C、 BOTH statement TOGETHER are sufficient, but ...
It is the little things we do today that have a profound influence on the planet. Only if all of us make joint efforts can we make a big difference and have a good environment. 2.垃圾分类 随着科学技术的发展,我们的生活变得好得多,也...
结果1 结果2 题目What is the average of 4, 6, 8 and 10 A.4 B.5 C.6 D.7 相关知识点: 试题来源: 解析 D 结果一 题目 What is the average of 4, 6, 8 and 10A.4B.5C.6D.7 答案 D相关推荐 1What is the average of 4, 6, 8 and 10A.4B.5C.6D.7 ...
AStatement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.