the length of the fish tank is
. Correct option is A)
<u>Step-by-step explanation:</u>
Here we have , Peter has just purchased a small rectangular fish tank that holds 910 milliliters of water. The tank has a width of 7 cm and a height of 10 cm. We need to find What is the length of the fish tank . Let's find out:
The fish tank is in the shape of cuboid , and we know that volume of cuboid :
⇒ 
Now , according to question we have following parameters :

Therefore , Putting theses values in above equation we get :
⇒ 
⇒ 
⇒ 
⇒ 
Therefore , the length of the fish tank is
. Correct option is A)