Unit 3 Advanced Test Review. EE.1 Evaluate: 9² - (3+13) + 11 A: 81 – (16) + 11 65 + 11 = 76.

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Presentation transcript:

Unit 3 Advanced Test Review

EE.1 Evaluate: 9² - (3+13) + 11 A: 81 – (16) = 76

Simplify the expression: 4² - 2³ A: 8

EE.2a Write a word phrase that describes 8k – 44 A: The difference in eight times a number k and forty- four

Mike has x stickers. Tim has 8 times as many stickers as Mike. Jill has 38 stickers. Write an expression that represents how many stickers they have total. A: x + 8x + 38

EE.2b List the number of terms and the coefficients of the following expression: P + 24x – 4y + 5 A: 4; 1, 24, -4

How many factors does the following expression have: X(3x-7)(5x-8) A: 3

EE.2c

Given the formula I = prt, where I = interest, p = principal, r = rate, and t = time; how much interest does Christian earn on the 300 dollars he invested at.02 after 8 years. A: $48

Which expression is equal to 16x + 42y a. (10x + 30y) + (6x + 12y) b. 4(4x + 5y) + 2(11y) c. 8(2x + 6y) d. 10x + 10y + x + y + 4x + 4y A: choice b

The formula for the perimeter of a rectangle is 2L + 2W. If the length of a given rectangle is 5x + 2, and the width is 2y + 19, which expression can represent the perimeter of the rectangle? HINT: Multiply the length and width each by 2, then combine all like terms. A: 10x + 4y +42

Rewrite 9(4x + 3y) + 29x without parenthesis. A: 65x + 27y

Which expression is equivalent to 4a + 4b? a. 4ab b. 4(a + b) c. 4a + b d. A + 4b A: choice b

Simplify the expression: (4x + 3) – (-2x + 8) A: 6x - 5

Trevolis thinks that the two expressions 4(8z -4) + 2z and 34z – 4 are equivalent. Is she correct? Explain why or why not. A: He is not correct. The expressions are not equivalent because the simplified version is 34z -16. (Trevolis forgot to distribute the 4 to the 4. )

A square has a perimeter of 12x What is the length of each side? A: 3x + 7

Larry bought a used car for x dollars. One year later, the value of the car is 0.84x. Which expressions represents another way to describe the change in value of the car? A: 16% decrease

Amy saw that a book she wanted was on sale for 15% off the retail price. If p represents the original price, write an expression that represents how much Amy can expect to pay for the book. A: p -.15p

All girl scout cookies are $2.75 a box. Your mom wants to purchase tagalongs and samoas. Write an expression that represents the total cost (T) of the cookies if t represents the number of tagalongs and s represents the number of samoas. A: T = 2.75 (t + s)