Sarah has saved 242 pound coins. She puts the pound coins into bags.
There are 20 pound coins in each full bag of coins.

Sarah is going to take all her full bags of coins to the bank.
She can only take up to 5 full bags of coins to the bank each day.

Sarah wants to go to the bank on as few days as possible.

On how many days will Sarah need to go to the bank?

When y’all answer can y’all explain too !

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?