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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

4-3 Solving Multiplication Equations

Standard : PFA

Indicator: P9 (same as 4-2)

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!

Important Steps to Remember!
slide3
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) = ??

slide4
2) 42 = -3f

42 = -3f

-3 -3

-14 = f

Check: -3 × -14 = ???

slide5

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