Mathematics第 47 / 120 题
Evaluate the expression 2(x + 3) when x = 4.
a.10
b.11
c.14
d.24
解析
Substitute x = 4: 2(4 + 3) = 2(7) = 14. Complete the parentheses first, then multiply by 2.
免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- How many centimeters are in 2.5 meters? (1 meter = 100 centimeters)
- What is 3/4 + 1/8?
- A nurse works 12-hour shifts. How many shifts must she work to reach 60 hours?
- Which number is greater: 0.6 or 0.55?
- A patient's fluid intake was 300 mL at breakfast, 450 mL at lunch, and 250 mL at dinner. What was the total intake?
- Solve the proportion: 4/6 = x/9.