4 times 7 is 14 so I think the answer is 14. So diane played 14 minutes more than Sandra. So I think the answer is 14!
_______________
l l l HERE'S A TEMPLATE FOR A 2X2 GRID :-D
l l l
l_______l_______l
l l l \left \{ {{y=2} \atop {x=2}} \right. \left \{ {{y=2} \atop {x=2}}
l l l
l_______l_______l
Answer:
B
Step-by-step explanation:
The volume of a sphere is given by
![V=\frac{4}{3}\pi r^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3)
where r is the radius
<em>For $2.75, we can get 1 large OR 2 small scoops.</em>
<em />
Giant scoop has diameter 6, so radius is half of that, which is 3, hence the volume is:
![V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}\pi (3)^3\\V=113.1](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3%5C%5CV%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%283%29%5E3%5C%5CV%3D113.1)
Regular scoop's diameter is 4, hence radius is 2. So volume of 1 regular scoop is:
![V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}\pi (2)^3\\V=33.51](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3%5C%5CV%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%282%29%5E3%5C%5CV%3D33.51)
We can get 2 of those, so total volume is 33.51 + 33.51 = 67.02
Hence, the max volume for $2.75 is around 113, answer choice B.