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Big Ideas Math: Modeling Real Life, Grade 8
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Big Ideas Math: Modeling Real Life, Grade 8 View details
4. Rewriting Equations and Formulas
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Exercise 4 Page 26

Apply inverse operations to isolate b.

b=A/h

Practice makes perfect
To solve the given formula for the red variable b, we will use the Properties of Equality to apply inverse operations on the formula. Remember, only like terms can be combined.
A= bh
DivEqn

.LHS /h.=.RHS /h.

A/h=bh/h
CalcQuot

Calculate quotient

A/h=b
RearrangeEqn

Rearrange equation

b=A/h
Subchapter links expand_more
arrow_right Try It p.26-27
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Try It 2 (Page 26)
Try It 3 (Page 26)
Try It 4 (Page 26)
Try It 5 (Page 26)
Try It 6 (Page 26)
Try It 7 (Page 27)
arrow_right Self-Assessment for Concepts & Skills p.27
Self-Assessment for Concepts & Skills 8 (Page 27)
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arrow_right Self-Assessment for Problem Solving p.28
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arrow_right Review & Refresh p.29
Review & Refresh 1 (Page 29)
Review & Refresh 2 (Page 29)
Review & Refresh 3 (Page 29)
Review & Refresh 4 (Page 29)
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arrow_right Concepts, Skills, & Problem Solving p.29-30
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Concepts, Skills, & Problem Solving 13 (Page 29)
Concepts, Skills, & Problem Solving 14 (Page 29)
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Concepts, Skills, & Problem Solving 16 (Page 29)
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Concepts, Skills, & Problem Solving 20 (Page 29)
Concepts, Skills, & Problem Solving 21 (Page 29)
Concepts, Skills, & Problem Solving 22 (Page 29)
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Concepts, Skills, & Problem Solving 32 (Page 30)