Well it depends what 'v' stands for
well all you need to do is replace the v with the number it stands for. For example if v=2 then the expression would be 4.2(2) - 5 - 6.5(2)
Then you use the order of operations. first you multiply
8.4 - 5 - 13
then you subtract from left to right
8.4 - 5 = 3.4
3.4 - 13 = -13 - 3.4 = -9.4
So IF v=2 (I used 2 as an example, V might not = 2 in your case) then the
answer will be -9.4
I hope this helped you :3
If he splits it into 4 bottles you have to convert 4/5 into a decimal and you would get .8 then
.8 divided by 4 would be .2 two tenths so there would be. two tenths of a gallon in each bottle
.2
<span>1) 3x + y = 23
6x + y = 44
Subtract 1st from 2nd,
3x = 21
x = 7
Then, y = 23 - 3(7) = 2
In short, Your Answer would be: (7, 2)
2) </span><span>4x - 3y = 21
2x + 3y = 33
Add the equations,
6x = 54
x = 9
Then, 2(9) + 3y = 33
3y = 33 - 18
y = 15/3
y = 5
In short, Your Answer would be: (9, 5)
3) </span><span>5x + 2y = 13
6y + 5x = 29
Subtract 1st from 2nd equation,
4y = 16
y = 4
Then, 5x = 13 - 2(4)
x = 5/5 = 1
In short, Your Answer would be: (1, 4)
4) </span><span>5x - 4y = 2
10x - 4y = 32
Subtract 1st from 2nd equation,
5x = 30
x = 6
Then, 5(6) - 2 = 4y
y = 28/4 = 7
In short, Your Answer would be: (6, 7)
5) </span><span>2x + 7y = 48
x + 3y = 21
Here, x = 21-3y
Substitute in in 1st equation,
2(21-3y) + 7y = 48
42 - 6y + 7y = 48
y = 6
Then, x = 21 - 3(6) = 3
In short, Your Answer would be: (3, 6)
6) </span><span>8x - 3y = 44
2y - 4x = -20
Multiply 2nd equation by 2
-8x + 4y = -40
Now, add it to 1st equation,
y = 4
Then, 2(4) - 4x = -20
4x = 8 + 20
x = 28/4 = 7
In short, Your Answer would be: (7, 4)
Hope this helps!</span>
Y= 1/5x+36/5
Y=mx+b. To find M (slope) all u do is set up: m=y^2-y^1/x^2-x^1 once u find your answer, replace m with the answer u get. To find b all u need to do is use one of the points given already, & set the y point, equaled to the sander you just got for m, multiplied by the x (replace the x) with the x given in the points I chose+b for example: 8=1/5(4)+b then multiply then subtract on both sides to get b alone
2 4/10 = 2.4
hope this helped
