University:
High School
Course:
High School Mathematics
Academic year:

2023
Views:

7

Pages:

3
Author:

anon

Hwk: Worksheet #4. Sam is interested in buying a TV. At Fair Deal, the TV is regularly priced at $599.99 and is on sale for 20% off the regular price. At Big Big Discount, the same TV is regularly priced at $899.99 and is on sale for 30% off the regular price. What is the difference in the sale price of the TV between these two stores? Solution: 100%-20%=80% 80% of 599.99 = 0. 8 ×599. 99 =479.99 Sale price at Fair Deal is $479.99 100%-30%=70% 70% of 899.99=0. 7 ×899. 99 =629.99 So, sale price at Big Big Discount is $629.99 Difference is price is 629.99-479.99=$150.00 Unit 3 Test Review Part A: 6 Multiple Choice Questions Rob is thinking of a number. He adds 10 to his number and finds that the result is three times his number. Suppose x is Rob‛s number. Which equation is always true? 𝑥 − 10 = 𝑥 3 𝑥 + 10 = 𝑥 3 𝑥 − 10 = 3𝑥 𝑥 + 10 = 3𝑥 Part B: True or False Questions When solving an equation you must follow the order of operations. True Part C: Written Answers 1. Verify a solution to an equation Is x=2 the solution 2x-3=x+7? L.S.=2x-3 =2(2)-3 =4-3 =1 R.S.=x+7 =2+7 =9 x=2 is not the solution since 𝐿. 𝑆. ≠𝑅. 𝑆. 2. Solving Equations • One step equations • MultiStep equations • Equations that involve fractions 3. Rearrange formulas 4. Application of Percent 5. Word Problems 6. Fuel Consumption Problem 7. Analyzing solutions (1 problem)