It takes 10 people 5 days to build 25 machines. How many days will it take 15 people to build 50 machines?

Let x be the total number of customers in a one-hour interval and y be the total number of female customers in the same interval. find the joint pmf of x and y.

An angle and it's complement are equal. Find both angels

The number of pizzas eaten at the class party is equal to one-forth the number of students, plus two more pizzas for the adult. If nine pizzas are eaten, how many students are there

Amber had 3/8 of a cake left after her party. She wrapped a piece that was 1/4 of the original cake for her friend. What fractional part did she have for herself?

F + 1/3 = 5/6 Find f.

Xy + 11x + 3y + 33 factor by grouping

Is 14/50 closer to 9/11 or 10/11

In a round-robin tournament with n teams, the number of games that must be played is (n^2-n) / 2. How many teams are in a round-robin tournament in which 55 games are played?

A block of wood is 7 inches long, 2 inches wide, and 3 inches high. What is the volume of this block of wood? 14 in3 42 in3 49 in3 147 in3

At Christmas a tv is on sale for 40% Off and is now priced at $876 find the original price the tv.