5 Minute Check Solve and show work on the back on your homework. 1. s - 1 2 = 1 2 2. s + 1 2 = 1 2 3. d + 4 = 36 4. d – 4 = 36

5 Minute Check Solve and show work on the back on your homework. 1. s - 1 2 = 1 2

5 Minute Check Solve and show work on the back on your homework. 1. s - 1 2 = 1 2 + 1 2 =+ 1 2 s+0 = 1

5 Minute Check Solve and show work on the back on your homework. 2. s + 1 2 = 1 2

5 Minute Check Solve and show work on the back on your homework. 2. s + 1 2 = 1 2 - 1 2 =- 1 2 s+0 = 0

5 Minute Check Solve and show work on the back on your homework. 3. d + 4 = 36

5 Minute Check Solve and show work on the back on your homework. 3. d + 4 = 36 -4 = -4 d + 0 = 32

5 Minute Check Solve and show work on the back on your homework. 4. d – 4 = 36

5 Minute Check Solve and show work on the back on your homework. 4. d – 4 = 36 +4 = +4 d + 0 = 40

5 Minute Check Turn to page 546 in your book.

5 Minute Check v

5 Minute Check v

5 Minute Check v We did not talk about this in class, don’t worry about it.

5 Minute Check v We did not talk about this in class, don’t worry about it.

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check v

5 Minute Check Clear your desk except for a pencil. You will have a maximum of 20 minutes. When complete, work on Accum Rev 7.

Lesson 7.4/7.5.a Solve and Write Mult/Div Equations Friday, Jan 22 Lesson 7.4/7.5.a Solve and Write Mult/Div Equations

Solve and Write Mult/Div Equations Objective: To successfully solve and write multiplication and division equations.

Solve and Write Mult/Div Equations A coefficient is the numerical factor of a term that contains a variable. e.g. 3x = 9 The coefficient is 3

Solve and Write Mult/Div Equations What is the coefficient? 7y = 49

Solve and Write Mult/Div Equations What is the coefficient? 7y = 49

Solve and Write Mult/Div Equations What is the coefficient? 8h = 32

Solve and Write Mult/Div Equations What is the coefficient? 8h = 32

Solve and Write Mult/Div Equations What is the coefficient? 45 = 3g + 6

Solve and Write Mult/Div Equations What is the coefficient? 45 = 3g + 6

Solve and Write Mult/Div Equations What is the coefficient? 5 – 6b = 6

Solve and Write Mult/Div Equations What is the coefficient? 5 – 6b = 6

Solve and Write Mult/Div Equations An equation is only true if both sides are equal. A teeter totter will only be balanced if there is equal weight on both sides.

Solve and Write Mult/Div Equations Multiplication and Division Property of Equality states if two expressions are equal to each other and the exact same number is multiplied or divided from both sides, the two sides will remain equal.

Solve and Write Mult/Div Equations Solve. 2b = 10 To Solve an Algebraic Equation. Step 1 – Circle the coefficient.

Solve and Write Mult/Div Equations Solve. 2b = 10 To Solve an Algebraic Equation. Step 1 – Circle the coefficient.

Solve and Write Mult/Div Equations Solve. 2b = 10 To Solve an Algebraic Equation. Step 2 – Multiply both sides by the reciprocal of the coefficient.

Solve and Write Mult/Div Equations Solve. 1 2 · 2b = 10 · 1 2 To Solve an Algebraic Equation. Step 2 – Multiply both sides by the reciprocal of the coefficient.

Solve and Write Mult/Div Equations Solve. 1 2 · 2b = 10 · 1 2 b = 10 2 b = 5 To Solve an Algebraic Equation. Step 2 – Multiply both sides by the reciprocal of the coefficient. The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Solve: 3x = 12 Step 1 - ?

Solve and Write Mult/Div Equations Solve: 3x = 12 Step 2 - ?

Solve and Write Mult/Div Equations Solve: 1 3 · 3x = 12 · 1 3 x = 12 3 x = 4 The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Solve: 56 = 4g Do this on your own.

Solve and Write Mult/Div Equations Solve: 1 4 · 56 = 4g · 1 4 56 4 = g 14 = g The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Solve: 96 = 6y Do this on your own.

Solve and Write Mult/Div Equations Solve: 1 6 · 96 = 6y · 1 6 96 6 = y 16 = y The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Solve: 1.5x = 3 Do this on your own.

Solve and Write Mult/Div Equations Solve: 1 1.5 · 1.5x = 3 · 1 1.5 x = 3 1.5 x = 2 The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Solve: 0.3x = 6 Do this on your own.

Solve and Write Mult/Div Equations Solve: 1 0.3 · 0.3x = 6 · 1 0.3 x = 6 0.3 x = 20 OR…… The blue is what you will be adding to the original equation. 20 0.3 ) 6 = 3 ) 60 -6

Solve and Write Mult/Div Equations Solve: 0.3x = 6

Solve and Write Mult/Div Equations Solve: 10 · 0.3x = 6 · 10 3x = 60

Solve and Write Mult/Div Equations Solve: 10 · 0.3x = 6 · 10 3x = 60 1 · 3x = 60 · 1 3 3 x = 20

Solve and Write Mult/Div Equations Solve: 1 4 x = 6 Do this on your own.

Solve and Write Mult/Div Equations Solve: 4 · 1 4 x = 6 · 4 x = 24 The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Solve: 4 7 x = 4 Do this on your own.

Solve and Write Mult/Div Equations Solve: 7 4 · 4 7 x = 4 · 7 4 x = 28 4 x = 7 The blue is what you will be adding to the original equation.

Solve and Write Mult/Div Equations Katie bought 5 cupcakes for $16.00. Write a algebraic equation that would find the cost of each cupcake. Do this on your own.

Solve and Write Mult/Div Equations Katie bought 5 cupcakes for $16.00. Write a algebraic equation that would find the cost of each cupcake. 5c = 16

Solve and Write Mult/Div Equations Steve’s tabby cat eats 5 times as often as his black cat. The tabby cat ate 10 times yesterday. Write and solve an algebraic equation to find how many times the black cat ate. Do this on your own.

Solve and Write Mult/Div Equations Steve’s tabby cat eats 5 times as often as his black cat. The tabby cat ate 10 times yesterday. Write and solve an algebraic equation to find how many times the black cat ate. 5b = 10 1 · 5b 10 · 1 5 = 5 b = 2

Solve and Write Mult/Div Equations Emma’s Girl Scout troop sold 216 boxes of cookies. If there are 8 girls in the troop, write and solve an equation to find the average numbers of boxes sold per girl. Do this on your own.

Solve and Write Mult/Div Equations Emma’s Girl Scout troop sold 216 boxes of cookies. If there are 8 girls in the troop, write and solve an equation to find the average numbers of boxes sold per girl. 8c = 216 1 8 · 8c = 216 · 1 8 c = 27 27 8 ) 216 -16 56

Solve and Write Mult/Div Equations

Solve and Write Mult/Div Equations Use the table that shows football data. George Blanda played in the NFL for 26 years. Write and solve an equation to find how many points he averaged each year.

Solve and Write Mult/Div Equations Use the table that shows football data. George Blanda played in the NFL for 26 years. Write and solve an equation to find how many points he averaged each year. 26p = 2002 1 · 26p 2002 · 1 26 = 26 p = 2002 26 p = 77 0077 26)2002 -182 182

Solve and Write Mult/Div Equations Use the table that shows football data. Norm Johnson played in the NFL for 16 years. Write and solve an equation to find how many points he averaged each year.

Solve and Write Mult/Div Equations Use the table that shows football data. Norm Johnson played in the NFL for 16 years. Write and solve an equation to find how many points he averaged each year. 16p = 1736 1 · 16p 1736 · 1 16 = 16 p = 1736 16 p = 108.5 0108.5 16)1736.0 -16 136 -128 80

Solve and Write Mult/Div Equations In the football game the home team earned 3 times as many points as the visiting team. They won the game with 21 points. Write and solve an algebraic multiplication equation to find how many points the visiting team scored. 5x = 75 . 5x = 15 x = 3

Solve and Write Mult/Div Equations In the football game the home team earned 3 times as many points as the visiting team. They won the game with 21 points. Write and solve an algebraic multiplication equation to find how many points the visiting team scored. 5x = 75 . 5x = 15 x = 3 He did not multiply both sides by 1/5.

Solve and Write Mult/Div Equations Identify which equation does not belong. Explain why.

Solve and Write Mult/Div Equations Identify which equation does not belong. Explain why. 4b = 7, the others have a solution of 4.

Solve and Write Mult/Div Equations Agenda Notes Homework – Homework Practice 7.4/7.5.a #1-8 Only Due Monday, Jan 25 Chapter 7 Test –Thursday, Jan 28 Accum Rev 7 Due Jan 28