Y varies directly with x, and y = 2 when x = 5.

What is the value of x when y = 15?

A. x = 25

B. x = 10

C. x = 6

D. x = 37.5

Frank drove to college and back again. He took 3 hours longer to go to college than he did to come back. On the way there he traveled at 20 mph. However, on the way back he traveled at 50 mph.

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Favorite colors Choose the correct level of measurement. A. Nominal B. Ratio C. Ordinal D. Interval

Find the missing value in the relationship 4/5 = 28/x and explain you method.

In psychology 101, the ratio of the number of girls to the number of boys is $3:1$. after one girl drops the class and three more boys sign up, the ratio of the number of girls to the number of boys becomes $5:2$.

What is x+9=2 (x_1) ^2 in the form of ax^2+bx + c=0

4.5 mi/h = _ ft/sec, how would one convert them?

Which system of equations has the same solution as the system below? 3x + 3y = 8 2x - y = 5

Which of the following activities are examples of data gathering? Check all that apply. A. Finding the mean weight of cancer patients in a study B. Graphing the heights of trees C. Asking voters whom they will vote for D.

For the numerator to have (x-8) as a factor, it's constant term must be what

How do I find the area of a square with no height?