Word Problems Involving Time and Distance

This video tutorial covers lesson 9 in module 3, focusing on solving equations from word problems. The instructor guides students through problems involving practice schedules and a race, demonstrating how to define variables, set up equations, and solve for unknowns. The video concludes with homework instructions and encouragement for students to practice independently.

What is the main focus of Lesson 9 in Module 3?

• Studying biological processes

• Solving equations from word problems

• Understanding chemical reactions

• Learning about historical events

If Heather practices piano for 2 hours each day and the total practice time for both soccer and piano over 5 days is 20 hours, how many hours per day does she practice soccer?

• 4 hours

• 3 hours

• 2 hours

• 1 hour

In the problem involving Jake, what is the total number of hours he practices both soccer and piano over 5 days?

• 15 hours

• 18 hours

• 20 hours

• 25 hours

How many hours per day does Jake practice soccer if he practices piano for a total of 2 hours over 5 days?

• 5 hours

• 4.2 hours

• 3.6 hours

• 2.4 hours

In the race problem, what is the total time from 6 a.m. to 2 a.m. the next day?

• 24 hours

• 18 hours

• 20 hours

• 22 hours

If Fred's average speed is 8 miles per hour, what is the expression for his total distance in terms of time T?

• D = 10T

• D = 8T

• D = 6T

• D = 4T

What is the expression for Sam's time if the total time is 20.55 hours and Fred's time is T?

• T - 20.55

• 20.55 - T

• 20.55 + T

• T + 20.55

What is the total distance both Fred and Sam will travel if Fred's distance is 8T and Sam's distance is 4(20.55 - T)?

• 142.5 miles

• 145 miles

• 138.2 miles

• 140 miles

How far will Fred bike if his speed is 8 miles per hour and his time is 14 hours?

• 110 miles

• 112 miles

• 120 miles

• 100 miles

What is the homework assignment for this lesson?

• Complete number 108 for number 4 in the problem set

• Solve 10 math problems

• Read Chapter 5

• Write an essay on a historical figure