Answer:
7.11
Step-by-step explanation:
To solve this you just have to make a rule of thirds, so you have that a cylinder has a volume of 2,700 and radius 3, and you want to find out the radius of a similar cylinder volume 6,400:
[tex]\frac{3}{2700} =\frac{x}{6400} \\\x=frac{3*6400}{2700}\\ x=7.11[/tex]
So we know that the radius of a cylinder with volume 6400, and that is similar to the 2,700 cylinder with radius 3, is 7.11
