Given that y varies proportionally with x and y=3 when x=20, find y when x=30

In a raffle, tickets numbered 1 to 30 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 7? Write your answer as a decimal rounded to the nearest thousandth.

Russel's weight is 3/4th of Brooke's weight. Find the ratio of Russel's weight to Brooke's weight?

Shad grids to show that 2 ones is the same as 20tenths

Write the shortened form of each monomial. a. 3 · b b. n · m c. 8 · s · t d. 2 · q · r · s

2x^2-5x-3=0 what values of x make this equation true?

Find the mean, median, and mode of the data. Choose the measure that best represents the data. Explain the reasoning. 91,87,65,87,72,62,12

What is the axis of symmetry for the function f (x) = 3 (x-2) ^2+4

What two digit number is three times the sum of its digits?

Factor completely 3x ^2 - 27

Compare the following 3/5 and 6/11