Answer:
w=-1.16u
Step-by-step explanation:
first you want to put the W's on one side and the U's on the other. we can do this by subtracting 4u from the left side and the right side making the equations 8w=-7u+2w.
next we want to subtract 2w from both sides making the equation 6w=-7u then we divide by 6 to get w=-1.16u
The equation for the direct variation is y= kx (where k is contant of variation.)
This equation represent that if x will increase then y will also increase because it's k times x.
Where the equation for indirect variation is 
By this equation if x will increase then y will decrease and vice versa.
The given data is :
x: 2 4 8 12
y: 4 2 1 2/3
Notice as x is increasing then y is decreasing. Like x has increased from 2 to 4 then y is decresing from 4 to 2 and so on.
So, the given data represent an indirect variation.
65 (length of bread originally) - 15(number of centi cut per day) x (the number of days that has passed) = Length of bread after x days
65-15x is the equation
And it’s a continuous function because you can sub in any value at x and you’ll still get a number on the Y-axis!
Hope this helps!
<span>Simplifying
3n + 9 = 7n + -15
9 + 3n = 7n + -15
9 + 3n = -15 + 7n
9 + 3n = -15 + 7n
9 + 3n + -7n = -15 + 7n + -7n
3n + -7n = -4n
9 + -4n = -15 + 7n + -7n
7n + -7n = 0
9 + -4n = -15 + 0
9 + -4n = -15
9 + -9 + -4n = -15 + -9
9 + -9 = 0
0 + -4n = -15 + -9
-4n = -15 + -9
-15 + -9 = -24
-4n = -24
Divide each side by -4
n = 6 </span>
