Robby invested $18,400 at 7% interest. He earned $9,016 interest at the end of x years. What is the value of x?

Question

anonymous · Answer

Im wondering the same...

anonymous · Answer

I was having difficulty with this a few minutes a go since I was sick when the teacher taught this.

Anyway, you would have to use the formula P*T*R=I
P=Principle=18400
R=Rate=7%=0.07
T=The number of years=X
I=Interest=9016

Solve for X

anonymous · Answer

Or in this case, T

anonymous · Answer

I think that how you would do it, give me a moment >.> Again, wasn't taught this

anonymous · Answer

Yeah, I was right. 18400*0.07=1288 
9016/1288=X

anonymous · Answer

Do you get it?

ezraweise · Answer

whats the anser

anonymous · Answer

I think you can divide 9016 by 1288 yourself..