John was twice bills age in year 2000. their combined in 2010 is 71. how old were john and bill in 2000

Jennifer says that the lowest common multiple of two consecutive numbers is equal to the product of the two numbers. By trying four different pairs of consecutive numbers, explore her theory.

3.4 divided by 1/3 equals what?

A market researcher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age. Identify the type of sampling used in this example.

The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 41 and a standard deviation of 9.

Homer has four times as many hits in baseball than interceptions in football. Homer has made a total of 120 hits and interceptions. How many of each has Homer made? (Matrix on the calculator)

What is the slope of y=1/2x + 3?

Question Trang is calculating an estimate of how many classes there are in her school. She knows that there are 25 students in each class because she asked her teacher.

9 stores is 3% of blank stores

A bag contains 4 blue and 6 green marbles. Two marbles are selected at random from the bag. If the first marble is NOT replaced before the second marble is drawn, what is the P (blue second | green first) ?

How can you know the value of 58