Chapter 3: Multi-step Equations and Inequalities
Q7.
Solve the equation. Check your solution.
Q7.
The total cost of repairing a car is the sum of the amount paid for parts and the amount paid for Labor. You paid \(78 for parts and \)45 for each hour of Labor. The total cost to repair the car was $168. How many hours did it take to repair the car?
- Copy and complete the verbal model.
Total cost= _____+Cost for each hour of Labor _____ - Let h represent the number of hours spent on Labor. Write an equation based on your verbal model.
- Solve the equation to find how many hours it took to repair the car.
Q7.
Solve the inequality. Graph and check your solution.
Q7.
Simplify the expression:.
Q7C.
Solve the equation. Check your solution.
Q .7CT
Solve the equation. Check your solution.
Q. 7E
Solve the equation. Check your solution.
Q. 7E
Solve the inequality. Graph and check your solution.
Q. 7MCQ
Solve the equation. Check your solution.
Q.8
The solution of the inequality is . Find the value of a.