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Section 2.4 Lecture Notes

Section 2.4 Lecture Notes - leaves at 8:15 at 40 mph in the...

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Section 2.4: Applications of Linear Equations A cashier had 26 coins consisting of dimes and half-dollars. The total value of these coins was \$8.60. How many of each type did he have? 12) For a high school production of West Side Story, student tickets cost \$5 each while nonstudent tickets cost \$8. If 480 tickets were sold for the Saturday night show and a total of \$2895 was collected, how many tickets of each type were sold? 18) A train leaves Dayton, OH and travels north at 85 km per hr. Another train leaves at the same time and travels south at 95 km per hour. How long will it before they are 315 miles apart? Two cars leave the same place at the same time going in opposite directions. One car travels at 40 mph and the other at 50 mph. How many hours will they be 300 miles apart? Two cars leave the same place. One car leaves at 8:00 am and travels at 35 mph. The other car

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Unformatted text preview: leaves at 8:15 at 40 mph in the opposite direction. In how many hours will the be 140 miles apart? Jeff can bike to work in ¾ hours. By bus the trip takes ¼ hours. If the bus travels 20 mph faster than Jeff rides his bike how far is it to his workplace. Mary begins jogging at 5am, averaging 3 mph. Joe leaves at 5:30am trying to catch up to Mary, averaging 5 mph. How long will it take Joe to catch up? 22) Sarah commutes to work by train. When she walks to the train, it takes her 40 min. When she rides her bike, it takes her 40 min. When she rides her bike, it takes her 12 min. Her average walking speed is 7 mph less than her average biking speed. Find the distance from Sarah’s house to the train station. One angle in a triangle is 15 o larger than a second angle. The third angle is 25 o larger than twice the second angle. Find the measure of each angle....
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Section 2.4 Lecture Notes - leaves at 8:15 at 40 mph in the...

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