17braylin27 17braylin27
  • 18-03-2021
  • Mathematics
contestada

Use the following systems of equations to answer the questions.



`x=y+10`



`2x+4y=38`



What is the value of x – y?

Respuesta :

chaficalhajj chaficalhajj
  • 18-03-2021
X=y+10
2(y+10)+4y=38
2y+20+4y=38
2y+4y=38-20
6y=18
Y=18/6
Y=3

X-10=y
2x+4(X-10)=38
2x+4x-40=38
6x=38+40
6x=78
X=78/6
X=13

X-y
=13-3
=10
Answer Link

Otras preguntas

In your own point of view, what are the benefits if we demonstrate proper etiquette and safety in the use of facilities and equipment?​
I need help question 15
A speech explaining how Moose Drool Ale is produced would probably use which pattern of organization
Which is equivalent to the expression below 6a-7+2a-4
"you may sit wherever you like" Identify the clasuses​
Show that ABC is right triangle A(-7,-2), B(-3,-3) C(-4,-7)
In an RNA sample, ________. A) thiamine number may or may not be equal to adenine number B) the number of purine is always equal to the number of pyrimidine C)
Excess phosphorus may run off and enter lakes, ponds, rivers and the ocean. Ultimately, the algae growth that results may end up depriving aquatic organisms of
Why has the tobacco lobby lost some of its power?
Ian has 4 cups of dough to make dumplings. If he uses 2/3 cup of dough for each dumpling, how many dumplings can Ian make?