Laylahlettiere
Laylahlettiere Laylahlettiere
  • 10-01-2020
  • Mathematics
contestada

Which is the solution to the system of equations?
y = 1/8x - 1
-5x + 4y = -13
A. (0, -1)
B. (8,0)
C. (1, -7/8)
D. (2, -3/4)

Respuesta :

omerdivan123
omerdivan123 omerdivan123
  • 10-01-2020

Answer:

D. (2, -3/4)

Step-by-step explanation:

Using the substitution method:

-5x+4(1/8x-1)=-13

-5x+0.5x-4=-13

-4.5x/4.5=-9/4.5

-x=-2

x=2

You are supposed to replace 2 in the first equation now but as there is no other option with x value of 2 D is the answer.

If continued:

-5(2)+4y=-13

-10+4y=-13

4y=-3

y=-3/4

Answer Link

Otras preguntas

A guy wire 1005 feet long is attached to the top of a tower. When pulled taut, it touches level ground 552 feet from the base of the tower. What angle does the
List three numbers that are less then 66,100
1. This cold, dry biome is populated by lichens and shrubs that can survive great seasonal variations in sunlight and temperature. 2. In this hot, dry biome, p
What is the r.a.m. value of krypton (Kr)? A. 36 amu B. 1/36 amu C. 84 amu D. 1/84 amu
Simplify the expression (6^2)^4
Which of the following value chain activities involves assisting users with handling of the products after sale, thus maintaining and enhancing the products' va
The 5-mm-thick bottom of a 200-mm-diameter pan may be made from aluminum (k = 240 W/m K) or copper (k = 390 W/m K). When used to boil water, the surface of the
Present value​ (with changing interest​ rates). Marty has been offered an injury settlement of ​$12 comma 000 payable in 3 years. He wants to know what the pres
Math help please!!!!!!
what are the five importance of attitudes in socialisation?