Math Problem Statement

Jaime finishes 15 math problems in 2.5 hours.

a. How many math problems can he finish in 8 hours? using ratio scaling

Solution

To solve this problem using ratio scaling, we'll set up a proportion based on the given information:

Given:

  • Jaime finishes 15 math problems in 2.5 hours.

To Find:

  • The number of math problems Jaime can finish in 8 hours.

Steps:

  1. Set up the proportion: 15 problems2.5 hours=x problems8 hours\frac{15 \text{ problems}}{2.5 \text{ hours}} = \frac{x \text{ problems}}{8 \text{ hours}} Here, xx represents the number of problems Jaime can complete in 8 hours.

  2. Cross-multiply to solve for xx: 15×8=2.5×x15 \times 8 = 2.5 \times x 120=2.5x120 = 2.5x

  3. Solve for xx: x=1202.5x = \frac{120}{2.5} x=48x = 48

Answer:

Jaime can finish 48 math problems in 8 hours.

Would you like more details or have any questions?


Here are 5 related questions to expand your understanding:

  1. How many math problems can Jaime finish in 1 hour?
  2. If Jaime's speed increases by 20%, how many problems can he solve in 8 hours?
  3. How long would it take Jaime to finish 30 math problems?
  4. What if Jaime could only work for 1.5 hours—how many problems could he complete?
  5. If Jaime completed 24 math problems, how much time did he spend?

Tip: When working with ratios, ensure the units are consistent across the proportion for accurate results.

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Math Problem Analysis

Mathematical Concepts

Ratio and Proportion

Formulas

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Theorems

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Suitable Grade Level

Grades 6-8