Solve the system by substitution.

y = 2x

3x + 2y = 21

Catarina and Tom want to buy a rug for a room that is 9 by 19 feet. They want to leave an even strip of flooring uncovered around the edges of the room. How wide a strip will they have if they buy a rug with an area of 119 square feet?

Use the Distributive property to rewrite each algebraic Expression (8 + r) 4, 8 (x+9),

Find all values of theta in the interval [0° 360°) that have the given function value. tan theta = 1

A class of 25 students has 15 girls and 10 boys. if one student is chosen at random what is probability it is a girl

Solve for α. 2α=-28 Simplify your answer as much as possible.

TK-119 has a 20% salt solution in it and contains 27,000 gallons. How many gallons of the solution are salt?

What is the square root of 517? And how do I show my work.

A bowl at a party holds 3 gallons (384 cups) of punch. How many 1 1/2 cup glass can be served from a full punch bowl?

2 times 2 plus 10 plus 200 plus 56

Y varies inversely with x and y = 5 when x = 2. Which is the inverse variation equation for the relationship? A y=1/2x B y=x+2 C y=10/x D y=2x