Help please!

The volume of a rectangular prism is 105 cubic centimeters. The length is 7 centimeters and the height is 5 centimeters. What is the width?

A.21 cm
B.9 cm
C.15 cm
D.3 cm

Question

Help please!
 
The volume of a rectangular prism is 105 cubic centimeters. The length is 7 centimeters and the height is 5 centimeters. What is the width?	

A.21 cm
B.9 cm
C.15 cm
D.3 cm

anonymous · Answer

do you know the formula for a rectangular prism?

anonymous · Answer

V=B*H*H
 i think

anonymous · Answer

**
B*H*W

anonymous · Answer

H x L x W....

anonymous · Answer

oh lol ok 
V=H*L*W thanks :)

anonymous · Answer

ya so insert numbers, and make sure the number/variable you are looking for is by itself then solve

anonymous · Answer

i have the V but dont have the W

anonymous · Answer

yes so the equation you need to use is

$$\frac{ v }{ l \times w}$$

anonymous · Answer

insert numbers and solve then you should get your answer