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Learn how to solve multiplication equations step-by-step, including finding the inverse operation, balancing steps, and isolating the variable. Practice solving equations with examples and understand the inverse of multiplication. Plus, apply the formula d=rt to solve real-life problems. Homework includes exercises from page 162-163.
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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!
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