Melody

Wed 12/11/14

1) Rosala's back  Hip Hip Horray!

okay so what does your teacher say is the answer?

Does someone else want to take a look at this one?

Nice answer Gino :)

I'd like to see this one answered using matrices.  

I'd like to do it myself but there arer too many questions and i do not have time      

(25.48-26.22) billion

5.693*10^4

that was a big effort Gino :)

divide 

$$\\125=5*5*5=5^3\\\\
25x=\frac{\sqrt{125}}{5}\\\\
125x=\sqrt{125}\\\\
x=\frac{\sqrt{125}}{125}\\\\
x=\frac{5\sqrt{5}}{125}\\\\
x=\frac{\sqrt{5}}{25}\\\\$$

9*3=27 

so what is 16*3 ?

3 parts cement to 1 part gravel = 4 equal parts

1/4 * 208 = 52 lbs of gravel