2020 AMC10A 真题
AMC 2020 AMC10A AMC PDF 421.42KB
2020-10-05Problem 1
What value of satisfies
2020 AMC10A
x 为何值时满足方程
Problem 2
The numbers and have an average (arithmetic mean) of . What is the average of and ?
数字 , , , 和 3 5 7 a b 的平均值(算数平均值)是 15 。则 a 和 b 的平均值是多少
?
Problem 3
Assuming , , and , what is the value in simplest form of the following expression?
假设 ≠ , ≠ 且 ≠ ,那么下式化成最简形式后的值为多少? a 3 b 4 c 5