Reminder Round all answers to two decimal places unless otherwise indicated.
Grains of Wheat on a Chess Board A children’s fairy tale tells of a clever elf who extracted from a king the promise to give him one grain of wheat on a chess board square today, two grains on an adjacent square tomorrow, four grains on an adjacent square the next day, and so on, doubling the number of grains each day until all 64 squares of the chess board were used. How many grains of wheat did the hapless king contract to place on the
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Chapter 4 Solutions
FUNCTIONS AND CHANGE COMBO
- Aerobic Power Aerobic power can be thought of as the maximum oxygen consumption attainable per kilogram of body mass. There are a number of ways in which physical educators estimate this. One method uses the Queens College Step Test. In this test, males step up and down a 16-inch bleacher step 24 times per minute for 3 minutes, and females do 22 steps per minute for 3 minutes. Five seconds after the exercise is complete, a 15-second pulse count P is taken. Maximum oxygen consumption M, in milliliters per kilogram, for males is approximated by M=111.3-1.68P. For females, the recommended formula is F=65.81-0.74P. a. Calculate the maximum oxygen consumption for both a male and a female who show a 15-second pulse count of 40. b. What 15-second pulse count for a male will indicate a maximum oxygen consumption of 35.7 milliliters per kilogram? c. What 15-second pulse count will indicate the same maximum oxygen consumption for a male as for a female? d. What maximum oxygen consumption is associated with your answer in part c?arrow_forwardBuying a cottage A group of friends decides to buy a vacation home for 120,000, sharing the cost equally. If they can find one more person to join them, each persons contribution will drop by 6000. How many people are in the group?arrow_forwardRenting a car at a certain car rental agency a compact car rent for $30 and then send a 10c cent a mile. (a) How much does it cost to rent a car for 3 days if the car is driven 280 Mile? (b) Find a Formula that model the car of renting this car for n days if it is driven m miles. (c) If the cost of a 3 day rental was 140 dollars how many miles was the car driven?arrow_forward
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