Math Problem Statement

answer only

Arrange the number of people who commute to work (in 000s) and the private to public transport percentages.

Solution

To analyze the problem shown in the image, let's go through the details provided:

  1. Details from the Question:

    • The number of people using public transport increased by 15% between Year 1 and Year 2.
    • 50,000 more people commuted to work in Year 2 than in Year 1.
    • 44,000 commuters used public transport in Year 2.
    • 189,000 commuters used private transport in Year 1.
  2. Objective: Arrange the commuting numbers for each mode of transport (public vs. private) for both years based on the given information.

  3. Solution Steps:

    • Since the public transport users increased by 15% from Year 1 to Year 2, let the number of public transport commuters in Year 1 be xx.

      • Then x×1.15=44,000x \times 1.15 = 44,000 (because 44,000 commuters used public transport in Year 2).
      • Solving for xx: x=44,0001.1538,261x = \frac{44,000}{1.15} \approx 38,261 So, approximately 38,261 people used public transport in Year 1.
    • Given there are 50,000 more commuters in Year 2 than in Year 1, the total commuters in Year 1 would be: Total Commuters in Year 1=Total Commuters in Year 250,000\text{Total Commuters in Year 1} = \text{Total Commuters in Year 2} - 50,000 If we denote the total commuters in Year 2 as T2T_2, then: T2=38,261+189,000+50,000277,261T_2 = 38,261 + 189,000 + 50,000 \approx 277,261 And: Total Commuters in Year 1=277,26150,000227,261\text{Total Commuters in Year 1} = 277,261 - 50,000 \approx 227,261

  4. Results Summary:

    • Year 1:
      • Public Transport: ~38,261
      • Private Transport: 189,000
    • Year 2:
      • Public Transport: 44,000
      • Private Transport: ~233,261

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Math Problem Analysis

Mathematical Concepts

Percentage Increase
Linear Equations
Arithmetic Operations

Formulas

Percentage Increase Formula: new_value = original_value * (1 + percentage_increase)
Total Commuters Formula: Year 1 Commuters = Year 2 Commuters - Increase
Arithmetic Operations for Summing Total Commuters

Theorems

Basic Arithmetic Operations
Percentage Increase Calculation

Suitable Grade Level

Grades 10-12