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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
2. Dividing Integers
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Exercise 38 Page 60

Substitute - 5 for z in the expression and then simplify as much as possible.

- 4

Practice makes perfect

We are given an expression and asked to evaluate it for some given values. 100÷ (- z^2) This means that we should substitute - 5 for z in the given expression and then simplify as much as possible. Let's do it!

100÷ (- z^2)
Substitute

z= - 5

100÷ (- ( - 5)^2)
CalcPow

Calculate power

100÷ (- 25)
DivToFrac

a÷ b=a/b

100/- 25
MoveNegDenomToFrac

Put minus sign in front of fraction

- 100/25
CalcQuot

Calculate quotient

- 4
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Try It 9 (Page 57)
arrow_right Self-Assessment for Concept & Skills p.57
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arrow_right Self-Assessment for Problem Solving p.58
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arrow_right Review & Refresh p.59
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arrow_right Concept, Skills, & Problem Solving p.59-60
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