22-11-2020
Mathematics

contestada

1) Solve this system of linear equations by elimination.

2x+4y=8
3x=12+4y

x=4,y=0
x=3,y=1
x=3,y=0
x=4,y=1

please answer step by step

Respuesta :

Hansika95 Hansika95

22-11-2020

Step-by-step explanation:

2x+4y=8

3x-4y=12

2x+4y+3x-4y=8+12

cancel +4y and -4y

therefore 2x+3x=20

5x=20

x=20/5

x=4

Sibstituting x=4 in 2x+4y=8

2x+4y=8

2*4+4y=8

8+4y=8

4y=8-8

y=0/4

y=0

x=4

y=0

Answer Link

Otras preguntas

what part of speech is abundant

Why did the colonists fought back against the British rule?

simplify the expression 4-3(2+5v)+7

kelly is 66 inches tall. Lucas is 72 inches tall. What is the ratio of Lucas's height to Kelly's height in simplest form? (: also, explain please!

in an A.P,the sum of first ten terms is -150 and the sum of next 10 terms is -550.Find the A.P

What happened during the holocaust?

Point B is on the graph of the function f(x) = -3x2. If the x-coordinate of point B is 2, which ordered pair gives the location of point B?

Nathan correctly answered 17 of the 20 questions on the test. What percent of the question did Nathan answer correctly?

in an A.P,the sum of first ten terms is -150 and the sum of next 10 terms is -550.Find the A.P

After sales tax is added the total cost of a $58 purchase $61.48 what is the sales tax rate on the purchase?