A rectangular prism has length thirteen meters, width six meters, and volume three hundred ninety cubic meters. What is the height of the prism?

Question

zpupster · Answer

I will help you set up the equation

the Volume of rectangular prism is 

V= l x w x h

where v is volume  l is length and w is width and h is height so 

lets punch in our numbers :

360 m ^3 = 13m x 6m x h

can you solve it now????

anonymous · Answer

78?

zpupster · Answer

first lets multiply the right hand side 

13 x 6=?

anonymous · Answer

78

zpupster · Answer

78 m ^2 ok

zpupster · Answer

now we have to isolate the h on one side can you do that??

anonymous · Answer

idk how i am new to this

zpupster · Answer

ok  in isolating we will divide both sides by 78m^2

zpupster · Answer

so 360m^3/78m^2 = 78m^2(h)/ 78M^2

zpupster · Answer

the 78 cancel on the right leaving with just h

and on the left 360/78 =??m

anonymous · Answer

4.615

zpupster · Answer

yes remember the units :

4.615 meters

Good Job!!!

anonymous · Answer

thanks

anonymous · Answer

i need help with one more thing which is graphing the equality

anonymous · Answer

Graph the inequality three times n minus four is less than or equal to twenty-three.

zpupster · Answer

post that as a separate problem ice