Solve the linear equation by using the Gauss-Jordan elimination method

-2x-6y = 10

6x+18y = - 30

What are four equivalent expressions for 50-10

What is 18/8's as a mixed number?

What is a word problem for 8x=48

A famous motorcycle company has just built its first electric model. Like all vehicles, the purpose of the motorcycle is to put out kinetic energy. How much energy goes toward kinetic energy? 50 J 200 J 400 J 800 J

The angle of inclination from the base of skyscraper A to the top of skyscraper B is approximately 12.8° If skyscraper B is 1479 feet tall how far apart are the two skyscrapers? Assume the bases of the two buildings are at the same elevation. feet.

Use the above figure to answer the question. How long is arc ACB if the radius of the circle is 6? Round your answer to two decimal places.

On a scale drawing, a cell phone tower is is 1.25 feet tall. The scale factor is 1/150. What is there height of the actual cell phone tower? A.) 37.5 feet B.) 148 feet C.) 120 feet D.) 187.5 feet

What is the solution to the equation 6x = 30? A. 5 B. 6 C. 29 D. 41

Ron lives 6 miles due north of the ball field, and Stan lives 8 miles due west of the ball field. What is the straight line distance between their homes? (It makes a right triangle.) A. 8 miles B. 10 miles C. 20 miles D. 50 miles

When planning a party you want to know whom to invite. Among the people you would like to invite are three touchy friends.