s1haPieraCharyg7irl
s1haPieraCharyg7irl s1haPieraCharyg7irl
  • 25-05-2016
  • Mathematics
contestada

What is the solution of the system? Use elimination.
5x – y = 20
2x + y = 15
A) (5, 5)
B) (7, 35)
C) (7, 0)
D) (5, -5)

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 25-05-2016
{ 5 x - y = 20
  2 x + y = 15
_____________
7 x = 35

x = 35 / 7

x =  5

For y :

2 x + y = 15

2*(5) + y = 15

10 + y = 15

y = 15 - 10

y = 5

Answer A  ( 5,5 )

hope this helps!

Answer Link

Otras preguntas

Identify the subjunctive verb phrase in the sentence below. I wish I could fly to the moon a. could fly b. fly c. wish d. could
What is a antonym for flounder?
Explain why the phrase in this sentence is nonrestrictive, or nonessential to the sentence: My youngest brother, Julian, is already taller than I am.
Biochemistry of life's macromolecules lab worksheet answers
Do jelly fish have eyes, and mouths? If so, why cant we see them?
write 6,735,834 in word form
Which one of the following provisions was part of the first draft of the Articles of Confederation submitted to the Second Continental Congress? A. Denial of t
ethyl and Henry Ross earned $ 211.11 in simple interest in 3 years at an annual interest rate of 3.1%. How much money did they invest to the nearest dollar?
what can be an alternative ending for the story "the lottery" by shirley jackson
What is the value of expression? 5−8 • 5−4 a. 532 b. 54 c. 5−4 d. 5−12