Let w represent the number of weeks passed.
The amount of money Ed saved is 6w - 1 (I'm subtracting the one dollar that he owes to someone)
His sister saved 6w + 2.66 (I'm adding the money she already saved).
What value of w makes both expressions equal?
We need to solve the equation 6w - 1 = 6w + 2.66
Let's solve it.
If we subtract 6w from both sides, we get -1 = 2.66
So, there is no solution. They will never have saved the same amount.
This makes sense because they started out with different amounts of money saved, but they are saving at the same rate.
The correct answer to this equation is C
Answer:
11
Step-by-step explanation:
Let's call the white marbles w and the red marbles r. We can write:
w + r = 16 (1)
w = 3r - 4 (2)
3r - 4 + r = 16 (3) (Substitute (2) into (1))
4r = 20 (simplify)
r = 5 (divide by 4) which means w = 16 - 5 = 11
Answer:
square mabye
Step-by-step explanation:
Answer:
The radius of these cylinders is approximately 1 foot.
Step-by-step explanation:
According to this graph, the volume of the cylinder is directly proportional to its height, that is, radius remains constant. The expression of direct proportionality:
(1)
Where:
- Volume of the cylinder, in cubic feet.
- Height of the cylinder, in feet.
- Proportionality constant, in square feet.
Besides, the proportionality constant is described by this expression:
(2)
Where 
is the radius of the cylinder, in feet.
If we know that 
and 
, then the radius of the cylinder is:
The radius of these cylinders is approximately 1 foot.
