It takes Brian 15 hours longer to build a model car than it takes John. If they work together, they can build the model car in 4 hours. Using complete sentences, explain each step in figuring out how to determine the time it would take Brian to build the car on his own.

Question

anonymous · Answer

SolomonZelman can you help me with my math

anonymous · Answer

its ok human i understand thank you

anonymous · Answer

^^ yea dude listen to this guy haha

anonymous · Answer

no its ok im closing this

anonymous · Answer

I can help you so now you get a good answer witch is C

anonymous · Answer

what