2020 AMC10A 真题

🗓 2020-10-05 📁 AMC 🏷️ 2020 AMC10A AMC 📄 PDF 📦 421.42KB

Problem 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

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