woottenemily7 woottenemily7

12-10-2020
Mathematics

contestada

Use elimination to solve for x and y:
9x - 4y = 11
x + 4y = 19
Select one:
a. (7,3)
b. (4,3)
c. (-1,5)
d. (3,4)

Respuesta :

wanimation144 wanimation144

12-10-2020

Answer:

multiply second eqyation by 9

Step-by-step explanation:

then subtract with 1 st eqn

Answer Link

bahadurkarkitej443 bahadurkarkitej443

12-10-2020

q9x-4y=19

9x=19+

1)x=19+4y/9

x+4y=19

2)x=19-4y

1 and 2

x=19+4y/9=x=19-4y

Answer Link

Otras preguntas

In 2017, John opened an investment account with Randy Hansen, who held himself out to the public as an investment adviser and securities broker. John contribute

How are electromagnetic waves used in bar-code scanners?

Why are passive readers most likely to have difficulty focusing on a text? They use too many strategies. They do too many things at once. They prefer re-reading

Jared and maila will usually both run 3 miles each time they go running .This month,jared ran an additional 21 miles. Which answer choice shows an expression th

Probability a bag of miniature candy’s contain 15 crunch bars 14 Hershey’s chocolate bars 10 Mr.Goodbars 12 Hershey’s cookies and cream bars. What is the probab

Could a desert form at 45°N latitude?

There were many cultural groups that helped to settle various regions in Louisiana including New Orleans. Select the four groups that most impacted the settleme

WILL GIVE BRAINLEISTSlave laws in the southern colonies in the 1600s1)established rules that required slave owners to treat enslaved workers well.2)defined an e

Please answer my question I will mark you as brill

9. Solve the equation. (1 point) 23 = 7x