A jogger ran 7 miles, decreased her speed by 1 mile per hour, and then ran...
3 Sighihcant figures) in the blanks provided. 1. A jogger ran for 15 minutes at 4 mph in the direction 40 South of West. Then she stopped, turned to the East, and ran with a constant acceleration of 0.3 m/šfor 1 minutes. She stopped again, turned, and ran back to the gym with a constant velocity. In all, she spent 35 minutes running and jogging. What was her velocity (magnitude and direction) as she was running back to the gym?...
Your car gets 25 miles per gallon (mpg at 60 miles per hour (mph) and 18 mpg at 70 mph At what speed should you make a 600-mile trip: a. If gas costs $3 per gallon and your time is worth S12 per hour? b. If gas costs S4 per gallon and your time is worth $15 per hour? allon and your time is worth S10 per hour? d. Build a spreadsheet to calculate the total trip cost for gas...
A plane flies at a constant groundspeed of 428 miles per hour due east and encounters a 36-mile-per-hour wind from the northwest. Find the airspeed and compass direction that will allow the plane to maintain its groundspeed and eastward direction. (Round your answers to two decimal places.) speed mph direction ° north of east
A motorboat maintained a constant speed of 13 miles per hour relative to the water in going 12 mesuram and the returning the total time for the trio was 6.5 hours information to find the speed of the current. The speed of the current is _______ miles per hour,
A train travels at a speed of 30 miles per hour. If 1 mile = 1.6 kilometers, how fast is the train traveling in kilometers per minute? Group of answer choices A 1.0 km/min B 0.4 km/min C 0.6 km/min D 0.8 km/min
function s/x)- 3600 ' gives a person's average speed in miles per hour if he or she travels one mile in The function s(x) = 60 + 04r 3600 (60+x) gives a person's average speed in miles per hour if he or she travels one mile in 3600(60 + x) x seconds more or less than 60 seconds. Use a linear approximation to s at 0 to find a person's approximate average speed if he or she travels one mile...
Floretta, a pitcher, claims that her pitch speed is less than 46 miles per hour, on average. Several of her teammates do not believe her, so she decides to do a hypothesis test, at a 5% significance level, to persuade them. She throws 24 pitches. The mean speed of the sample pitches is 37 miles per hour. Floretta knows from experience that the standard deviation for her pitch speed is 5 miles per hour. H0: μ=46; Ha: μ<46 α=0.05 (significance...
Gas mileage actually varies slightly with the driving speed of a car (as well as with highway vs. city driving). Suppose your car averages 31 miles per gallon on the highway if your average speed is 54 miles per hour, and it averages 29 miles per gallon on the highway if your average speed is 69 miles per hour. Answer parts (a) and (b) below. a. What is the driving time for a 3000-mile trip if you drive at an...
For a certain automobile, M(x) = - 015x2 +1.25x - 7.6,30s xs 60, represents the miles per gallon obtained at a speed of x miles per hour, (a) Find the absolute maximum miles per gallon and the speed at which it occurs. (b) Find the absolute minimum miles per gallon and the speed at which it occurs. (a) The absolute maximum miles per gallon is This occurs at mph. (Type an integer or decimal rounded to the nearest thousandth as...
Jen recently rode her bicycle to visit her friend who lives 4 miles away. On her way there, her average speed was 15 miles per hour faster than on her way home. If jen spent a total of 1 hour bicycling, find the two rates. Answer How to enter your answer Keypad Jen's average speed to her friend's house: mph Jen's average speed from her friend's house: mph