02-11-2016
Mathematics

contestada

-x+2y=9
-7x-2y=-1
Solve each system by elimination

Respuesta :

03-11-2016

x - 2y = - 9
7x + 2y = 1

x - 2y = - 9
(+)
7x + 2y = 1
___________
8x = - 8

x = - 1

- 1 - 2y = - 9
2y = 8
y = 4

i am a mathematics teacher. if anything to ask please pm me

Answer Link

Otras preguntas

In the executive branch, the title of department is reserved for a. agencies of Cabinet rank. b. independent agencies. c. agencies of the judicial branch. d.

The _____ aided big business by reducing the power of labor unions in the United States. Specifically, it meant that unions could no longer demand that only uni

is 3/8 equivalent to 2/6

18 is 5% of what number

Characters traits can be discovered by analyzing __________. hyperbole imagery characterization syntax

It's generally recommended that athletes consume approximately _______ percent of their daily calories from fat. A. 10 B. 30 C. 90 D. 60

9. What is the volume of the prisms shown below? 308 cu in 154 cu in 28 cu in 72 cu in

4. Bile salts from the gall bladder mix with fats to further break them down in a process called (Points : 2) A. enzymatic reaction. B. oxidation. C. emulsifica

A grocery store sign indicates that bananas are 6 for $1.50, and a sign by the oranges indicates that they are 5 for $3.00. Find the total cost of buying 2 bana

Which of the following is not a phase change? melting of snow evaporation of water from the ocean condensation of water vapor to form clouds hydrogen and oxygen