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Unit 4. Day 11..

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1 Unit 4. Day 11.

2 Example A: Write an equation. Then solve the equation.
Mr. Jordan wants to buy a used car that costs $8,750. If he has $4,200 saved already, and can save $175 each week, how many weeks will it take him to save the money for the car? 8750 4200 175 βˆ™ 𝑀 + = 𝑀=8750 βˆ’4200 βˆ’4200 175𝑀 = 4550 175 175 2βˆ™5βˆ™5βˆ™7βˆ™13 5βˆ™5βˆ™7 𝑀 = = = 26 26 π‘€π‘’π‘’π‘˜π‘ 

3 Example A: Write an equation. Then solve the equation.
Mr. Jordan wants to buy a used car that costs $8,750. If he has $4,200 saved already, and can save $175 each week, how many weeks will it take him to save the money for the car? πΆπ‘œπ‘›π‘ π‘‘π‘Žπ‘›π‘‘ π‘‡π‘’π‘Ÿπ‘š π‘‰π‘Žπ‘Ÿπ‘–π‘Žπ‘π‘™π‘’ π‘‡π‘’π‘Ÿπ‘š π‘‡π‘œπ‘‘π‘Žπ‘™ 𝑀 = 8750

4 Example B: Write an equation. Then solve the equation.
Sam is trying to loose weight. Sam is currently 198 pounds. If she is dieting and exercising and can lose 4 pounds each month, how many months will it take her to get down to 140 pounds. 198 βˆ’4 βˆ™ π‘š 140 = 198βˆ’4π‘š=140 βˆ’198 βˆ’198 βˆ’4π‘š = βˆ’58 βˆ’4 βˆ’4 58 4 2βˆ™29 2βˆ™2 29 2 14 1 2 π‘š = = = =

5 198 βˆ’4π‘š =140 Example B: Write an equation. Then solve the equation.
Sam is trying to loose weight. Sam is currently 198 pounds. If she is dieting and exercising and can lose 4 pounds each month, how many months will it take her to get down to 140 pounds. πΆπ‘œπ‘›π‘ π‘‘π‘Žπ‘›π‘‘ π‘‡π‘’π‘Ÿπ‘š π‘‰π‘Žπ‘Ÿπ‘–π‘Žπ‘π‘™π‘’ π‘‡π‘’π‘Ÿπ‘š π‘‡π‘œπ‘‘π‘Žπ‘™ 198 βˆ’4π‘š =140

6 Example C: Write an equation. Then solve the equation.
Ms. Ritter grew up on a small farm in S. Indiana. When she was in 7th grade, her allowance depended on how much produce she helped sell. Her allowance was $5, but she received an extra $2 for every melon she sold. If her allowance last week was $ 29, how many melons did she sell? 5 2 βˆ™ π‘š 29 + = 5+2π‘š=29 βˆ’5 βˆ’5 2π‘š 24 = 2 2 π‘š = 12 π‘šπ‘’π‘™π‘œπ‘›π‘  12

7 Example C: Write an equation. Then solve the equation.
Ms. Ritter grew up on a small farm in S. Indiana. When she was in 7th grade, her allowance depended on how much produce she helped sell. Her allowance was $5, but she received an extra $2 for every melon she sold. If her allowance last week was $ 29, how many melons did she sell? πΆπ‘œπ‘›π‘ π‘‘π‘Žπ‘›π‘‘ π‘‡π‘’π‘Ÿπ‘š π‘‰π‘Žπ‘Ÿπ‘–π‘Žπ‘π‘™π‘’ π‘‡π‘’π‘Ÿπ‘š π‘‡π‘œπ‘‘π‘Žπ‘™ 5 + 2π‘š = 29

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