I. The Number System with Rational Numbers- Completely simplify each numerical expression. 1) 11[( 25 8.7 ) = 2) -12.6 3.2 ( -20.75) = 3) – –14] – – 4) (-51.2) (1.06) (0.5) = 5) 6) 7) 20 (-1.34 + ) = 8) 9) 12 + 68 2 42 = – • – • 10) 5[2(8 5) + 1.5 2.5] 11) 5(32 + 2) 2(62 52) – – – – Applications of Rational Numbers 1) Hector drove 185 miles to a business meeting. His business partner drove 5/4 of this distance to get to the same meeting. How many more miles did the business partner drive than Hector? 2) The gas tank of Ty’s truck holds 19.8 gallons. When the tank is empty, Ty fills it with gas that costs $3.65 per gallon. How much will it cost to fill the tank? To simulate travel, NASA’s Lewis Research Center in Cleveland uses a 430-foot shaft. The free fall of an object in the shaft takes 5 seconds to travel the 430 feet. (a) Write an integer to represent the change in the height of the object.
I. The Number System with Rational Numbers- Completely simplify each numerical expression. 1) 11[( 25 – 8.7 ) –14] = 2) -12.6 – 3.2 – ( -20.75) = 3) 4) (-51.2) (1.06) (0.5) = 5) 6) 7) 20 – (-1.34 + ) = 8) 9) 12 + 68 • – 2 • 42 = 10) 5[2(8 – 5) + 1.5 – 2.5] 11) 5(32 + 2) – 2(62 – 52) Applications of Rational Numbers 1) Hector drove 185 miles to a business meeting. His business partner drove 5/4 of this distance to get to the same meeting. How many more miles did the business partner drive than Hector? 2) The gas tank of Ty’s truck holds 19.8 gallons. When the tank is empty, Ty fills it with gas that costs $3.65 per gallon. How much will it cost to fill the tank? To simulate travel, NASA’s Lewis Research Center in Cleveland uses a 430-foot shaft. The free fall of an object in the shaft takes 5 seconds to travel the 430 feet. (a) Write an integer to represent the change in the height of the object.
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