1.Suppose you worked on your mathematics project from 9:00 AM to 12:15 PM.Find the length of elapsed time.
2.Rosing put a whole chicken in the oven at 5:38 PM.The chicken needs to roast for one hour and 30 minutes.At what time should the chicken be ready for dinner?
3.A car travelled 240 km in 2 1/2 hours.What was the average speed of the car?
4.Find the difference when 8x-4 is subtracted from 10x -3.
5.Subract 2x²-4x-2 from the sum of 3x²-2x +4 and 2x²+6x-10.
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Answer:
1. 15 hours and 15 minutes.
2. 6:08 PM
3. 96 kph
4. 2x + 1
5. 3x^2 + 8x -4
Step-by-step explanation: