1. Albert has $2.70 more than Bert does. Bert Has three times as much money as Chris does. Together, the three friends have $26.22. How much money does Albert have?
2. A square based pyrapid has a volume of 12a^5b^4 units^3 and has a height of 9a^3 units. Determine the side length of the base.
****BTW.. when i was trying #2, I had to use the volume of square based pyramid. If you dont wanna look it up, it is:
V=2bs+b^2*****
****Another BTW.. if you dont know already, ^=Exponent**** Thanks a million!
IN URGENT HURRY! PLEASE!! DESPERATE!!!!
There are lots of online tutorials and help guides in the LaTeX sub forum here.
Ok, first off, the formula for the volume of a square based pyramid is
where l is the side length of the square and H is the height of the pyramid.
You're told and .
Using these bits of information we get
.
Solve for l.
Think about it like this...
What's happened to l to turn it into .
It's been squared, then multiplied by .
So to undo all this stuff that's happened, we do the inverse operations in reverse order.
What's the opposite of multiplying by ?
What's the opposite of squaring?