Identify the type of sample used.

An electronics store sends out a survey to the people on its mailing list asking them about their favorite brands of televisions.

A.

convenience

B.

simple random

C.

stratified random

D.

systematic

Susie has twice as many dimes and nickels, this amounts to $1.85. How many of each coin does she have?

A coach asked two players how much water they drank before practice. Ashley said she drank 1/2 pint and Claire said she drank 0.7 pint. How many pints of water did Ashley and Claire drink combined?

You have 10 liters of a juice blend that is 60% juice. How many liters of pure juice need to be added in order to make a blend that is 75% juice?

R to he car dealer pays $10,000 for a car. They mark it up 40%

What is 3/8 of 14.5 miles

Can 5x-4+9 be simplified

Each set of ordered pairs represents a function. Write a rule that represents the function (0, 1) (1,3) (2,9) (3,27) (4,81)

Twenty milligrams of the drug lincomycin is to be given for each kilogram of a person's weight. The drug is to be mixed with 250 cc of a normal saline solution, and the mixture is to be administered intravenously over a 1 hour period.

In the diagram below, QRS is an equilateral triangle and RT QS.

What is the solution of this system of linear equations? y=2x-3 2x=y-3 a. infinitely many solutions b. (0, - 3) c. (0,0) d. no solution