SOLUTION: Question #29 says to simplify... (5*10^8)(y*10^9) textbook answer is 35*10^17. I tried FOIL method. Can get 10^17 but not 35 Thanks Paul

Algebra ->  Exponents -> SOLUTION: Question #29 says to simplify... (5*10^8)(y*10^9) textbook answer is 35*10^17. I tried FOIL method. Can get 10^17 but not 35 Thanks Paul      Log On


   

Question 99488This question is from textbook intermediate algebra
: Question #29 says to simplify...
(5*10^8)(y*10^9)
textbook answer is 35*10^17.
I tried FOIL method.
Can get 10^17
but not 35
Thanks
Paul This question is from textbook intermediate algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I think your "y" must be a "7".
That is the only way you would get a 35 in the answer
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Cheers,
Stan H.