Susan and Alejandro were in a race to finish their math work. Together they spent 30 minutes. Susan worked twice

as fast as Alejandro. How many minutes did each one spend on their math work.

The outside diameter of a pipe is 4.825 inches. If the pipe wall is 0.145 inches thick, what is the inside diameter of the pipe?

Nondigestible carbohydrates can be used in diet foods, but they may have Problem 7.2 effects on colonic hydrogen production in humans. We want to test to see if inulin, fructooligosaccharide, and lactulose are equivalent in their hydrogen production.

Solve the formula ax+by=c for x

Elmwood Elementary School has 576 students and 24 teachers Savory Elementary School has 638 students and 29 teachers what school has the lower unit rate of students per teacher

Simplify the expression 8s - 11s + 6

Which of the following are solutions to the equation below? x^2-6x+40=6x+5

Malcolm is driving 1,323 miles from Wichita to Charleston for a family reunion. He drives 443 miles the first day and 409 miles the second day. Round each distance to the nearest ten and estimate about how many miles Malcolm has left to drive.

What's an example of an integer word problem in addition?

Each person on a boat ride pays $26 for a ticket. There are 63 passengers. How much money is collected from all the passengers?

Let the random variable x have a discrete uniform distribution on the integers 8 ≤ x ≤ 10. determine the mean, μ, and variance, σ2, of x.