One cooy machine can run off copies in 198 minutes. A newer machine can do the same job in 126 minutes. How long does it take the two machines, working together, to make all of the necessary copies?

Multi step equation a-2+3=-2

Three divided by x equals. 75 what is x

An experiment is set up to study the weights of 35 mice after they are injected with a drug. The population mean is 23.50 grams with a standard deviation of 3.40 grams. The standard error of the sample mean is __.

Find the height of a triangle with area 85 1/3 ft squared and base 10 2/3 feet squared

Compute the average (mean) from the data shown. (round to the nearest tenth) {91, 91, 91, 97,65, 37, 41, 76, 87} A) 74.2 B) 74.9 C) 75.1 D) 75.4

What is an expression that can represent X divided by the sum of three and seven

How are the GCf and the LCM alike and different

6x^2-2x+1=0 solve for x

A Roth IRA is advertised to pay 1.5% annual interest. You researched the rate of inflation to be 1.15% this year. What is the actual or real rate of return on the IRA?

Ariel is putting together lunch bags for 12 students going on a field trip. She put 5 apple slices and 6 orange slices into each bag. How many apple slices and orange slices does Ariel need?