Chapter 7 – Math – PSSA Practice (Part 1) Name: ______________________________________ For # 1, circle correct or incorrect for each possible answer AND for EACH answer, show your work OR explain why to support your choice of correct or incorrect. 2 1. Kent thinks that x x and x are equivalent expressions because they each have a value of 4 when x 2 . Which statement BEST demonstrates whether Kent is correct? A. Kent is correct because x x is the 2 same as 2 x , and 2 x is the same as x . correct OR incorrect B. Kent is correct because the two expressions are equivalent when x 0 . correct OR incorrect C. Kent is NOT correct because the two expressions do not have the same value at x 1 . correct OR incorrect D. Kent is NOT correct because expressions can never be equivalent if they use different operations. correct OR incorrect For # 2, circle the correct answer AND show your work to support your answer choice. 2. Alex and Payton each have a favorite pancake recipe. 1 7 Alex’s recipe uses cups of flour for 5 batches. 2 3 Payton’s recipe uses cups of flour more per batch than 4 Alex’s recipe uses per batch. Which expression can be used to determine the number of cups of flour used to make x batches of Payton’s pancake recipe? A. 2 1 x 4 1 3 1 x C. 2 4 1 B. 8 x 4 1 3 7 x D. 2 4 ** Hint – you will need to refresh your memory on dividing fractions. (KCF!) For # 3, circle the correct answer AND show your work to support your answer choice. 3. Jenae goes to the store to buy a jacket. The store is having a sale for 30% off the original price of the jackets. Jenae also has a $10off coupon she will use to buy the jacket. The expression below can be used to find her final price for a jacket with an original price of p dollars. 0.7 p 10 The jacket Jenae decides to buy has an original price of p $87.99 . What is the final price of the jacket Jenae is buying? A. $51.59 B. $54.59 C. $71.59 D. $84.99 ** Hint: Show your substitution in parentheses, one step per line, working down, with arrows.