The following are the ages (years) of 5 people in a room:

20, 21, 20, 21, 21

A person enters the room.

The mean age of the 6 people is now 20.

What is the age of the person who entered the room?

Bart practices his trumpet 1 and 1/4 hours each day how many hours will he practice in 6 days

The mean age of 5 people in a room is 28 years. A person enters the room. The mean age is now 29. What is the age of the person who entered the room? ...

The quadratic regression graphed on the coordinate grid represents the height of a road surface x meters from the center of the road.

How do I answer 249/591

What is the best unit to describe the rate at which water flows through a household faucet

The base of a rectangle has a length of 4 inches and a diagonal has a length of 5 inches, Find the area of the rectangle

A ball is thrown from an initial height of 7 feet with an initial upward velocity of 28/fts. The ball's height h (in feet) after t seconds is given by the following. = h+7-28t16t2 Find all values of t for which the ball's height is 15 feet.

The sum of two twin primes is 60. What are the numbers

The product BxA equals

You have 90 minutes to complete atleast 18 chemistry and math problems. It takes 5 minutes to complet a chemistry problem and 4 minutes for each math problem. Which is a possible solution to this equation?