Pre-Algebra Bellwork Sept. 2 – Sept 6.

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Presentation transcript:

Pre-Algebra Bellwork Sept. 2 – Sept 6

9/2/13 No School – Labor Day

Bellwork 9/3/13 Simplify. 26 (-7)2 84 (-9)3

Bellwork 9/4/13 Simplify. 44 – (5 . 42) (4 + 44) (6 – 71) 15 – 4(3 + 32)

Bellwork 9/5/13 Simplify if a = 2, b = 4, and c = -1 1. a4 + 2(b – c2) 2. c2 + a4 - b 3. (a-2)0 4. 2(ca + ba)

Explain how you determined your answer. Bellwork 9/6/13 Jumel and Ashley have two of the most popular phones on the market, a Droid and an iPhone. Jumel’s monthly cell phone plan is shown below, where c stands for the cost in dollars, and t stands for the number of texts sent each month. Jumel: c = 60 + 0.05t Ashley’s plan costs $.35 per text, in addition to a monthly fee of $45. Whose plan, Jumel’s or Ashley’s, costs less if each of them sends 30 texts in a month? Explain how you determined your answer.