"Joint variation<span>" means "directly, but with two or more variables". Thus, we write as follows:
j </span>α gv
<span>
We insert proportionality constant k, to change it to equality.
j = kgv
We solve k,
1 = k (4)(3)
k =1/12
j = gv/12
j = 8(11)/12
j = 22/3</span>
1. The best answer is A since a solution is where 2 lines intersect. Whether or not they intersect the x or y axis is completely irrelevant (so is whether they intersect the origin).
2. y=-x+5
-x+5=1/2x+2
-x+3=1/2x
3=3/2x
2=x
y=-(2)+5
y=3
Answer: (2,3)
3. It seems like the lines are completely on top of each other (coinciding) so there are infinitely many solutions.
Answer: 
Step-by-step explanation:
I believe you're trying to find its volume.
Answer:
190%
Step-by-step explanation:
$1.56 is close to nearly 2x the value of $0.87
You can start by multiplying $0.87 by 2 to get $1.74
Now put $1.56 / $1.74
This gets you 0.89655172
By rounding this, you can get to 0.90
Move the decimal places two spots over to get a percentage = 90%
Since the eggs didn't decrease in value, you can add the 100% from the beginning of the problem.
100+90=190%
Answer:
3 gallons at 3 dollars a piece
Step-by-step explanation:
2.25 •6=13.50
4.50•3=13.50
13.50+13.50= 27.00
36-27=9
9÷3=3
