Bob's Phone Bill Analysis

This video tutorial covers Grade 7 Math, Module 2, Lesson 23, focusing on solving equations using algebra. The lesson specifically addresses a word problem involving Bob's phone bill, which includes a fixed fee and a variable cost per minute. The tutorial guides students through writing an equation to model the situation, solving the equation step-by-step, and interpreting the solution in the context of the problem.

What is the main focus of this lesson?

• Solving equations using algebra

• Learning about geometry

• Understanding fractions

• Studying probability

What is the fixed fee in Bob's phone bill problem?

• $5

• $10

• $15

• $20

How much does Bob pay per minute for his phone usage?

• 15 cents

• 10 cents

• 20 cents

• 5 cents

What is the total amount Bob's phone bill was for July?

• $18

• $22

• $20

• $24

What does the variable 'M' represent in the equation?

• The cost per minute

• The fixed fee

• The number of minutes

• The total cost

What is the first step in solving the equation for Bob's phone bill?

• Add $10 to each side

• Multiply by 0.05

• Subtract $10 from each side

• Divide by 0.05

After subtracting $10 from each side, what is the next step?

• Add 0.05 to each side

• Multiply by 0.05

• Divide by 0.05

• Subtract 0.05 from each side

Why is it important to show each step in solving the equation?

• To avoid solving the problem

• To make the solution longer

• To ensure clarity and understanding

• To confuse the reader

How many minutes did Bob use in July according to the solution?

• 240 minutes

• 200 minutes

• 220 minutes

• 260 minutes

What is the purpose of stating the value of the variable in context?

• To check the accuracy of the solution

• To understand the real-world application

• To simplify the equation

• To find a different solution