Answer:
x = 1
Step-by-step explanation:
Given :
6x – y = 1
4x – 3y = –11
To Find : the new equation after the expression equivalent to y from the first equation is substituted into the second equation.
Solution :
6x – y = 1 ---a
4x – 3y = –11 ---b
In equation a
y = 6x-1
Now substitute this value of y in equation b
4x – 3(6x-1)= –11
Thus the new equation : 4x-18x+3 = -11
-14x =-14

x=1
Put value of x in equation a
6*1– y = 1
6-y=1
5=y
Thus the solution is (1,5)
The tip is 9% hahahahaha here:
Answer:
15y=30x-3z*5
Step-by-step explanation:
Answer: 540
Step-by-step explanation:
Given : The owner of a stereo store wants to advertise that he has many different sound systems in stock.
Number of different CD players =6
Number of different receivers= 10
Number of different speakers = 9
We are assuming that a sound system consists of one of each .
Then by Fundamental principle of counting , we have
The number of different sound systems can he advertise = (Number of different CD players)x (Number of different receivers) x(Number of different speakers)
= 6 x10 x 9 =540
Hence, the number of different sound systems can he advertise =540
The answer is b. Brent completed 3 more questions than alexa did