(15, -8) :)
From C to midpoint you do (+10, -7), so you have to do that again to get to D
Answer:
![\large \text{Part a:}\\\\for\ d-\dfrac{25}{d}}](https://tex.z-dn.net/?f=%5Clarge%20%5Ctext%7BPart%20a%3A%7D%5C%5C%5C%5Cfor%5C%20d%3C0%3A%5C%20%5Cboxed%7Bv%3C-%5Cdfrac%7B25%7D%7Bd%7D%7D%5C%5C%5C%5Cfor%5C%20d%3E0%3A%5C%20%5Cboxed%7Bv%3E-%5Cdfrac%7B25%7D%7Bd%7D%7D)
![\large\text{Part b:}\\\\\boxed{r=\dfrac{7}{3}w-5}](https://tex.z-dn.net/?f=%5Clarge%5Ctext%7BPart%20b%3A%7D%5C%5C%5C%5C%5Cboxed%7Br%3D%5Cdfrac%7B7%7D%7B3%7Dw-5%7D)
Step-by-step explanation:
![\text{Part a}\\\\-vp+400,\ \text{then}\ \boxed{v>-\dfrac{25}{d}}\\\\\text{if}\ d](https://tex.z-dn.net/?f=%5Ctext%7BPart%20a%7D%5C%5C%5C%5C-vp%2B40%3C65%5Cqquad%5Ctext%7Bsubtract%2040%20from%20both%20sides%7D%5C%5C%5C%5C-vp%3C25%5Cqquad%5Ctext%7Bchange%20the%20signs%7D%5C%5C%5C%5Cvp%3E-25%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%20%7D%5C%20d%5Cneq0%5C%5C%5C%5C%5Ctext%7Bif%7D%5C%20d%3E0%2C%5C%20%5Ctext%7Bthen%7D%5C%20%5Cboxed%7Bv%3E-%5Cdfrac%7B25%7D%7Bd%7D%7D%5C%5C%5C%5C%5Ctext%7Bif%7D%5C%20d%3C0%2C%5C%20%5Ctext%7Bthen%20you%20must%20flip%20the%20inequality%20symbol%7D%5C%20%5Cboxed%7Bv%3C-%5Cdfrac%7B25%7D%7Bd%7D%7D)
![\text{Part b}\\\\7w-3r=15\qquad\text{subtract 7w from both sides}\\\\-3r=-7w+15\qquad\text{divide both sides by (-3)}\\\\\boxed{r=\dfrac{7}{3}w-5}](https://tex.z-dn.net/?f=%5Ctext%7BPart%20b%7D%5C%5C%5C%5C7w-3r%3D15%5Cqquad%5Ctext%7Bsubtract%207w%20from%20both%20sides%7D%5C%5C%5C%5C-3r%3D-7w%2B15%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%20%28-3%29%7D%5C%5C%5C%5C%5Cboxed%7Br%3D%5Cdfrac%7B7%7D%7B3%7Dw-5%7D)
If 3 ice cream cones cost 8.25 how much do 2 ice cream cones cost?
1 cone cost
8.25 : 3 = 2.75
2 cones cost
2.75 * 2 = 5.5
or
(8.25 : 3) * 2 = 5.5
A.
First you have to evaluate (2000* .045) then you take that and multiply by 8 then you add the answer to 2000.
so 2720 is your answer.
Answer is D.
28:44 is the ratio but you have to simplify it. Divide both by 4. 28 divided by 4 = 7; 44 divided by 4 = 11