Mathematical Reasoning第 48 / 120 题
A recipe needs 2 cups of flour for 12 cookies. How many cups are needed for 30 cookies?
a.4 cups
b.2.5 cups
c.6 cups
d.5 cups
解析
Set up a proportion: 2/12 = x/30, so x = (2 × 30)/12 = 5 cups. Proportions keep the ratio of flour to cookies constant. Scaling recipes uses this direct relationship.
免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- A circle has a radius of 6 cm. What is its circumference? (Use π ≈ 3.14.)
- Evaluate the expression 5(x − 2) when x = 6.
- What is the next number in the pattern: 3, 6, 12, 24, ___?
- What is the area of a triangle with a base of 10 cm and a height of 6 cm?
- Solve the inequality: 2x − 3 < 7.
- What is 0.6 written as a percent?