Your friend's heart beats 18 times in 15 seconds when at rest. while running, your friend's heart beats 25 times in 10 seconds. question 1 a. find the heart rate in beats per minute at rest and while running. while at rest, the heart rate is beats per minute. while running, the heart rate is beats per minute. question 2 b. how many more times does your friend's heart beat in 3 minutes while running than while at rest? your friend's heart beats more times while running.

Write the sentence as an equation. z plus 372 is equal to 160

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day