Verified answer

Answer:

h = 2.5cm

Step-by-step explanation:

Given:

CSA = 110 cm² , r = 7cm , h= ?

CSA = 2πr*h

110 cm² = 2π ( 7cm)h

110 cm² = 2 * [tex]\frac{22}{7}[/tex]  * 7 *h

110 cm² = 2 * 22 * h

h = 110 /44

h = 5/2 cm

h = 2.5 cm

Answer:

A fish tank in a pet store was less than half full of water when a worker turned on a hose to fill the

tank at a constant rate. After the hose was on for 5 minutes, the tank was exactly half full. After the

hose was on for 30 minutes, the tank was three-quarters full. How many minutes did it take after

the hose was turned on for the tank to be completely filled with water?

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