Question

the picture shows a container that rene uses to freeze water. what is the minimum number of identical containers rene would need to make 2,000 cm³ of ice? (use π = 3.14.)

Explanation:

Step1: Calculate volume of one container

The formula for the volume of a cylinder is $V=\pi r^{2}h$. Given diameter $d = 6$ cm, so radius $r=\frac{d}{2}=\frac{6}{2}=3$ cm and height $h = 8$ cm. Then $V = 3.14\times3^{2}\times8=3.14\times9\times8 = 226.08$ $cm^{3}$.

Step2: Find number of containers needed

Divide the total volume of ice required by the volume of one - container. Let the number of containers be $n$. Then $n=\frac{2000}{226.08}\approx8.84$. Since we can't have a fraction of a container, we need to round up to the next whole number.

Answer:

9