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Help Katie calculate total expenses on video games with discounts, solve volume formulas, determine initial velocity, and drain a pool using math concepts.
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10/8 Honors Algebra Warm-up (6min) Katie works at Game Stop where video games cost $20.00 and if you buy 2 you get 2 free. She purchases 5 video games and uses her employee discount of 15%. If sales tax is 7.25%, how much does she spend on the games? Solve the formula V = πr2h for h. Then find the height of a cylindrical swimming pool that has a radius of 12 feet and a volume of 1810 cubic feet.
3: The formula represents the distance s an object travels with an initial velocity v, time t, and a constant rate of acceleration a.Solve the formula for v.
Dimensional analysis: process of carrying units throughout a computation. 4: A sports car accelerates at a rate of 8 ft/s2and travels 100 feet in about 2.8 seconds.What is the initial velocity to the nearest tenth?
5: Mrs. Brittingham is draining her cylindrical above ground pool. The pool has a radius of 8 feet and a height of 5 feet. If the pool water is pumped out at a constant rate of 10 gallons per minute, about how long will it take to drain the pool? Write your answer in hours and minutes (1 ft3 = 7.5 gallons)
Essential Questions • How is solving for a specific variable different from solving equations? 2. Why do we need to solve formulas for specific variables?
Pgs. 120-121 #8-22even, 23, 34, 35, 39, 40 8. 18. 34. ~17.4cm 10. 20. 35. 12. 22. 39. B 14. 23. 6m 40. H 16.