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Math on the Mind

Math on the Mind. Simplify each expression. 1. 50 – 4 • 3 + 6 2 . 3(6 + 2 2 ) – 5 3. 2[(1 + 5) 2 – (18 ÷ 3)] Evaluate each expression. 4. 4 x + 3 y for x = 2 and y = 4 5. 2 • p 2 + 3 s for p = 3 and s = 11 6. xy 2 + z for x = 3, y = 6 and z = 4. 44. 25.

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Math on the Mind

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  1. Math on the Mind Simplify each expression. 1. 50 – 4 • 3 + 6 2. 3(6 + 22) – 5 3. 2[(1 + 5)2 – (18 ÷ 3)] Evaluate each expression. 4. 4x + 3y for x = 2 and y = 4 5. 2 • p2 + 3s for p = 3 and s = 11 6.xy2 + z for x = 3, y = 6 and z = 4 44 25 60 20 51 112

  2. Evaluating Formulas Unit 1, Lesson 3

  3. Evaluating Expressions • http://app.discoveryeducation.com/player/view/assetGuid/C1479853-6A4E-4BC8-BA2C-A05623C5078B

  4. Use the expression r + 0.12m to calculate the cost of renting a car. The basic rate is r. The number of miles driven is m. • The basic rate is $15.95. The car is driven 150 mi. • The basic rate is $32.50. The car is driven 257 mi.

  5. pa 2 Use the formula A = 3 ( ) to find the total area of all three decks. A carpenter wants to build three decks in the shape of regular hexagons. The perimeter p of each deck will be 60 ft. The perpendicular distance a from the center of each deck to one of the sides will be 8.7 ft. = 783 The total area of all three decks is 783 ft2.

  6. The price for your annual visit at the dentist is calculated according to the formula 50+100n, where n is the number of cavities the dentist finds. What will be the cost of the visit if the dentist finds 2 cavities?

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