One inlet pipe can fill an empty pool in 8 hours, and a drain can empty the pool in 12 hours. How long will it take the pipe to fill the pool if the drain is left open?

Betty can mow a lawn in 40 minutes. Melissa can mow the same lawn in 60 minutes. How long does it take for both Betty and Melissa to mow the lawn if they are working together? Express your answer...

The following argument says that natural processes in the universe are sufficient to produce life, and as such, God is an unnecessary complication... A. Argument from Incompatible Attributes...

Find three consecutive odd  integers such that four times the largest is one more than nine times the smallest integer.

Al goes 8 mph; Ben goes 22 mph in the opposite direction. How many hours has Ben traveled when they are 180 miles apart?

For a test of 14 true‐false questions, determine the probabilities of the events if every question is answered by guessing. Enter your answers as fractions.   Part 1 out of 2   a...

A manafucturer produces electrical components. Resistors from one line have a nominal value of 10Ω. The "bronze" quality resistors can deviate from their nomincal value by 10% of the nomical...

There 20 people competing in a contest. If first place earns \$100, second place earns \$50 and third place earns \$25, how many ways can the three winners be selected?

I know you can get that outcome depending on the assortment, but is there a way to ensure that O(n) occurs despite the assortment?