The numbers 3,5,7,a, and b have an average (arithmetic mean) of 15. What is the average of a and b ? (2020 AMC 10A Problem, Question #2)A.0B.15C.30D.45E.60 答案 CThe arithmetic mean of the numbers 3,5,7,a, and b i
The average score of a class is 75. What does "average" mean? A. total number of scores B. highest score C. sum of scores divided by the number of scores D. lowest score 相关知识点: 试题来源: 解析 C。“average”是平均数的意思,即总和除以数量。A 选项是总分;B 选项是最高分;D ...
(1) The average of the first nine integers is 7. (2) The average of the last nine integers is 9. 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. ...
What is the average (arithmetic mean) of 330, 360, and 390() A.360B. 3177 C.310+ 320+ 330 D.327+ 357+ 387 E.329+ 359+ 389 点击查看答案&解析在线练习手机看题 你可能感兴趣的试题 单项选择题 【案例分析题】 We packed early. An 8 a.m. international flight, especially one to be ...
Building your retirement fund is critical for financial security. After all, you don’t want to run short of money when you’re older and no longer earning a paycheck. But how much should you have saved? Although a financial planner can help you determine the amount based on your unique...
in the context of technology and computing, average typically refers to the mean value of a set of numbers. it's calculated by adding all the values together, then dividing by the number of values. for example, if you have data points like 5, 7, 9, you'd add them up (21) and ...
In this episode of Shopify Masters, you’ll learn how one entrepreneur discovered a business idea during a trip to South Korea, quickly launched and then went back to redesign the brand.
What does 75% mean? A. Three-quarters of the students got a passing grade. B. Three-fourths of the students got an A. C. Three-quarters of the questions were answered correctly on average. D. One-fourth of the students got a perfect score. 相关知识点: ...
GMAT 考满分题库看1）说n/3的人的平均身高是6（后面多少inches不管了）---也就是1/3n（三分之一...
What Is an Average Roth Return in 2025? Understanding the allocations in your Roth IRA can help manage volatility and set realistic expectations for long-term returns. Kate StalterApril 22, 2025 2026 Social Security COLA Get ready for the rate increase to Social Security benefits, which will st...