Solve system by elimination

20x-12y=-20

-10x+6y=10

A cell phone company orders 500 new phones from a manufacturer. If the probability of a phone being defective is 2.6%, predict how many of the phones are likely to be defective. Round to the nearest whole number.

Bill has $20. He goes to the deli and spends $5 on a sandwich, $2 on a drink, and $1 on a bag of chips. How much money does bill have left?

On this road map, which street is parallel to Waterloo Street?

Solve the following system of equations: y = 4x - 6 5x - 4y = - 9

A rock band has made souvenir T-shirts to sell at their concert and hopes to bring in at least $140 from the sale of the shirts. They make $4 for each adult T-shirt and $2 for every child T-shirt. I have to write a linear equation

During a recession, Tina had to take a 9 % pay cut. Her original salary was $45,230. a. What has her salary after the pay cut? b. Once the recession was over, Tina's company wanted to increase her pay to her original salary.

What is the answer to this equation: 4x - 2y = 6

4. A store is displaying boxes of a new video game in 7 rows. If the store has 49 copies of the game, how many games are in each row? 49 Games Games in one row

a bathtub is filled with 110 gallons of water. The tub drains at a rate of 5 gallons every 2 minutes. How long will it take before the bath tub is empty. Write an equation.

The sum of 7 consecutive odd numbers is 91. What is the sum of the two largest numbers in this set?