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1.2 Solving Multistep Equations with work
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May 293:44 PM
WARMUP
1.
May 3012:35 PM
1.2 Solving MultiStep EquationsEssential Question: How can you use multistep equations to solve reallife problems?
What you will learn:• Solve multistep linear equations using inverse operations.
• Use multistep linear equations to solve reallife problems.• Use unit analysis to model reallife problems.
May 3012:43 PM
Steps to Solving a MultiStep Equation:Simplify each side, CLT.
Use inverse operations to get the variable alone.
SADMEP**TI
P**
solve vertically to make LESS careless mistakes!!
May 3012:46 PM
Examples:
a) 2.5x 13 = 2 b) 12 = 9m 6m + 15
May 3012:48 PM
Practice:1) 2n + 3 = 9 2)
3) 2v 10v + 12 = 18
May 3012:50 PM
Solving Using 2column Proof MethodJustify your reasoning for your mathematical choice at
every step.
This is great for partial credit and fixing mistakes!
Example 1: 2(1 x) + 3 = 8Statement Reasons
1. 2(1 x) + 3 = 8 1. Given
***Number each line, twice!!***
1.2 Solving Multistep Equations with work
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May 3012:55 PM
Example 2:statements reasons
1. Given1.
May 3012:58 PM
Practice:4) 13 = 2(y 4) + 3y
1) 13 = 2(y 4) + 3y 1) Given
5) 2x(5 3) 3x = 5
1) Given1) 2x(5 3) 3x = 5
May 301:01 PM
Solving RealLife ProblemsUnderstand the Problem
Make a Plan
Solve the Problem
Check/Look Back
Example:The formula relates the nozzle pressure n (in pounds per square inch) of a fire hose and the maximum horizontal distance the water reaches d (in feet). How much pressure is needed to reach a fire 50 feet away?
May 301:24 PM
Example:Your school's drama club charges $4 per person for admission to a play. The club borrowed $400 to pay for costumes and props. After paying back the loan, the club has a profit of $100. How many people attended the play?
May 301:27 PM
Practice 6: You have 96 feet of fencing to enclose a rectangular pen for your beef cows. To provide sufficient standing space for your cattle to all fit, the pen should be three times as long as it is wide. Find the dimensions of the pen.
May 301:29 PM
HW: Pg. 16: 1 41 (o), 57 65
58. 9 2b
60. a) x = 1
62. b) x = 2
64. b) x = 2
1.2 Solving Multistep Equations with work
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May 301:45 PM
DAY TWO One and Two Step Equation Maze Activity. When you have AT LEAST two completed, turn your work in to earn credit, and start working on your book work!
HW: Pg. 16: 1 41 (o), 57 65
May 301:47 PM
Exit Slip Requirements1) email four pictures to [email protected]
2) What was the toughest part of today's activity?
3) How did your group first start to sort?
4) Make an equation and work it out. I will use this problem next year.
Work on your book work when you are done!
HW: Pg. 16: 1 41 (o), 57 65