4-3 Solving Multiplication Equations

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# 4-3 Solving Multiplication Equations - PowerPoint PPT Presentation

4-3 Solving Multiplication Equations. Standard : PFA Indicator: P9 (same as 4-2). Your goal for every equation… Use the… (or opposite operation) Keep the equation… Show every…. To Isolate the variable Inverse operation Balanced Step!. Important Steps to Remember!.

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### 4-3 Solving Multiplication Equations

Standard : PFA

Indicator: P9 (same as 4-2)

Use the…

(or opposite operation)

Keep the equation…

Show every…

To Isolate the variable

Inverse operation

Balanced

Step!

Important Steps to Remember!
What is the inverse of multiplying?

Dividing

Examples

1) -2.5b = 40.5

-2.5b = 40.5

-2.5 -2.5

b = -16.2

Check -2.5 × (-16.2) = ??

2) 42 = -3f

42 = -3f

-3 -3

-14 = f

Check: -3 × -14 = ???

Use the formula d = rt to solve the following. A car traveled 300 miles. If its average speed was 65mi/hr how long did it take?

• d = rt
• 300 = 65 t
• 65 65
• 48/13 = t
• Or 4.6 t
• So, the car traveled about 4.6 hours
Homework
• 4-3
• Pg. 162-163
• #4-13 All
• # 14-26, 32-36 even only
• #38, 39