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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

Chapter Review

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Exercise 22 Page 46

Practice makes perfect

a We need to isolate the variable h in the given formula.

V=1/3Bh

LHS * 3=RHS* 3

3V=Bh

.LHS /B.=.RHS /B.

3V/B=h

Rearrange equation

h=3V/B

b In the diagram, the values of V and B are provided. We can use our rewritten formula to find the height h.

h=3V/B

V= 216, B= 36

h=3 * 216/36

Multiply

h=648/36

Calculate quotient

h=18

The height of the pyramid is 18 cm.

Subchapter links

1 Solving Simple Equations p.44

2 Solving Multi-Step Equations p.44

3 Solving Equations with Variables on Both Sides p.45

4 Solving Absolute Value Equations p.45

5 Rewriting Equations and Formulas p.46