4-3 Solving Multiplication Equations

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4-3 Solving Multiplication Equations

• Standard PFA
• Indicator P9 (same as 4-2)

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Important Steps to Remember!

• Your goal for every equation
• Use the
• (or opposite operation)
• Keep the equation
• Show every

• To Isolate the variable
• Inverse operation
• Balanced
• Step!

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• 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) ??

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• 2) 42 -3f
• 42 -3f
• -3 -3
• -14 f
• Check -3 -14 ???

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• 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
• 4 8/13 t
• Or 4.6 t
• So, the car traveled about 4.6 hours

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Homework

• 4-3
• Pg. 162-163
• 4-13 All
• 14-26, 32-36 even only
• 38, 39