Solve the system of equations by elimination.

x + y + 2z = 0

5x - 3y - z = - 5

5x + 2y + z = 3

The owner of a resale shop is analyzing the revenue for the year. Profit is modeled by the function p (x) = x2 - 14x + 485, where p (x) represents profit and x represents the number of items sold.

The expression x^2-9/x^2+6x+8 is undefined when x=

Complete the fraction model to solve 5 * (9/12)

Erin put 20 vegetables on her tray. If 1/4 of them were carrots, how many carrots were on Christina's and Erin's trays? Explain how you found your answer.

What is the simplified form of 24r - 3 (2r - 5t) - 4t? Question 1 options: 18r - 9t 18r + 11t 23r - 9t 23r + t

Find the output, y, when the input, x, is 30. y = 14 - 0.5x

Let's say that you want to paint a room in your house. The room has rectangular walls. Each wall is 8 feet high. Two of the walls are 15 feet long, and the other two walls are 12 feet long.

Thirty students volunteered to set up booths for the school fair. All of the students worked 2 hours after school on Thursday and on Friday. Twelve of them also worked 3 hours on Wednesday.

What is the slope of the equation y = 3/4x + 8? A. 3/4 B. 8 C. 3 D. 4

Seth learned to play a total of 8 pieces over the course of 4 weeks of piano lessons. In all how many weeks of piano lessons will Seth need before he will be able to play a total of 18 pieces?