What is the remainder for 15 divided by 4?

What is the value of x in the diagram below?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Y=21.95x+10 y=22.45x solve by substitution