FORUM DESCRIPTION The Mercy College office started with one old copy machine. After a while, they bought a new
copy machine. The new copy machine can xerox one box of student files in 1 hour. The old
machine can xerox the same amount of paper in 3 hours.
How long will it take to xerox one box of student papers if Mercy College office runs both copy
machines at the same time?
How can you be sure that your answer is right?

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Enter the missing numbers in the boxes to complete the table of equivalent ratios. time (min) distance (km)? 36 9? 1512 ?