Question

Please help, I'm not sure what I'm doing wrong :(
[(45.82g/3.0cm^3) - (0.64g/0.859cm^3)]/2

I keeo getting 7.00 g/cm^3, but the answer says it's 3.00g/cm^3

Answer 1

\[[\frac{45.82g}{3.0cm^{3} } - \frac{0.64g}{0.859cm^{3} } ] ÷ 2 \]

Answer 2

i get 7 too

Answer 3

http://www.wolframalpha.com/input/?i=1%2F2(45.82%2F3-.64%2F.859)

Answer 4

Oh, well I think the book is wrong, but I got 7.26, thank you very much for helping though!