Solving Equations RealWorld Problems INDEX Real World Applications
Solving Equations Real-World Problems
INDEX �Real World Applications: �Phone Charges �Health Club Fees �Vacation Expenses (renting an airplane) �Business (Teddy Bear sales) �Business (Tote bag sales)
Phone Charges �One telephone company charges $16. 95 per month and $0. 05 per minute for local calls. Another company charges $22. 95 per month and $0. 02 per minute for local calls. For what number of minutes of local calls per month is the cost of the plan the same? Need Help
Phone Charges…what’s important? �Plan A: One telephone company charges $16. 95 per month and $0. 05 per minute for local calls. �Plan B: Another company charges $22. 95 per month and $0. 02 per minute for local calls. �QUESTION: what number of minutes of local calls per month is the cost of the plan the same �HINT… per means multiply Check your Answer
Phone Charges 16. 95 + 0. 05 m = 22. 95 + 0. 02 m -0. 02 m 16. 95 + 0. 03 m = 22. 95 -16. 95 0. 03 m = 6. 00 0. 03 m = 200 minutes Return to Index
Health Club Fees �One health club charges a $44 sign-up fee and $30 per month. Another health club charges a $99 sign-up fee and $25 per month. For what number of months is the cost the same? Need Help
Health Club Fees Club A: $44 sign-up fee + $30 per month Club B: $99 sign-up fee + $25 per month QUESTION: # minutes cost A = cost B 44 + 30 m = 99 + 25 m m = 11 months Return to Index
Flying �You and a pilot friend decide to rent an airplane to do some sightseeing. One service charges $100 plus $80 per hour, while another charges $250 plus $70 per hour for the same airplane. At what number of hours is the cost the same? Need Help
Flying �Plane A: $100 + $80 per hour �Plane B: $250 + $70 per hour �QUESTION: number hours Plane A = Plane B 100 + 80 h = 250 + 70 h h = 15 hours Return to Index
Business (teddy bears) �A toy company spends $1500 each day for factory expenses plus $8 per teddy bear. Each teddy bear sells for $12. How many bears must the company sell in one day to break even? Need Help
Business (teddy bears) �expenses: $1500 + $8 per bear �revenue: $12 per bear �QUESTION: break even… expenses = revenue 1500 + 8 b = 12 b b = 375 teddy bears Return to Index
Business (tote bags) �A company manufactures tote bags. The company spends $1200 each day for overhead expenses plus $9 per tote bag for labor and materials. The tote bags sell for $25 each. How many tote bags must the company sell each day to break even? Need Help
Business (tote bags) �expenses: $1200 + $9 per bag �revenue: $25 per bag �QUESTION: break even… expenses = revenue 1200 + 9 b = 25 b b = 75 tote bags Return to Index
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