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

13, 15, 12, 16, 14

A person enters the room.

The mean age of the 6 people is now 19.

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

Solve the system by substitution 5x+3y=8 3x+y=8

When would it be more useful to represent a proportional relationship with a graph rather than an equation

What number can be written as six hundred forty-seven?

What's the inverse operation of the function f (x) = x divide by 2?

A store has 300 television on order and 80% are high definition. how many television are in order are high definition

Solve for k. 2.5 (4k+2) = 12k

Finding equal shares if two friends share 3 fruit bars

When a new machine is functioning properly, only 4% of the items produced are defective. Assume that we will randomly select two parts produced on the machine and that we are interested in the number of defective parts found.

A box contains 13 nickels and 5 quarters. What is the ratio of quarters to nickels? A. 5 to 13 B. 13 to 5 C. 5 to 18 D. 18 to 5

While playing a board game, you roll two different colored standard dice. What is the probability of rolling a 5 on the black die and a number less than 4 on the red die? 1 10 1 12 2 3 1 2