ashlensheren ashlensheren
  • 15-11-2019
  • Mathematics
contestada

Solve the system by substitution.
-x+2y=57
10x=y

Respuesta :

bayosanuade
bayosanuade bayosanuade
  • 15-11-2019

Answer: x = 3

y = 30

Step-by-step explanation:

substitute y = 10x into the first equation , we have

- x +2(10x) = 57

-x + 20x = 57

19x = 57

x = 57/19

x = 3

Substitute x = 3  into the second equation

10(3) = y

Therefore y =30

Answer Link

Otras preguntas

where does the first stage of cellular respiration ,glucose occur
Find the 14th term of the geometric sequence 10,−20,40,...
ln(y+1)-lny=1+3lnx . Express y in terms of x, in a form not involving logarithms. (4 marks, Maths CIE A level)
Which mineral has a matallic luster , a black streak and is an ore of iron? 1. galena 2. magnetite 3. pyroxene 4. graphite
What are elements with an atomic number then 95 called
What is the solution to the system of equations below? 3x+4y= -2 2x-4y= -8 A:x=2,y=-2 B:x=6,y=-5 C:x=4,y=4 D:x=-2,y=1 D:
the equation m = 0.3048f gives the relationship between meters and f feel. express 9 feet in meters. round your answer to the nearest thousandth.
I am going to pick out a car today. I hope the one I want is available in green. Which sentence joins the clauses above correctly without changing their meanin
There was a time when there was a hunger for english knowledge.
What does Mr. Edwards carry in his pocket when he crosses the creek? A. sweet potatoes B. rice C. broccoli D. potatoes This is from the little hous