V = 30*16*12. To find the volume of a rectangular prism, you just multiply the area of the base (side 1 * side 2) by the height of the prism.
#9
35/42 divide by 7 and X = 5
Create equations:
10X+15y=2575.
X+Y=210.
Solve for X: X=210-Y, and sub it into the other equation: 10(210-Y)+15Y=2575. Solve for Y: 2,100-10y+15y=2575, 5y=475, y=95.
Sub Y into the original problem: X+95=210. Solve: X=115.
The first mechanic charges $115 per hour and the second charges $95 :)
For this case we have the following functions:
By definition of composition of functions we have to:
So:
By definition of division of powers of the same base we have to place the same base and subtract the exponents:
ANswer:
2 pieces :)
Not sure if you wanted work but here is my explanation:
there are six pieces that she cut out, and she ate 1/3 of the six pieces,
1/3=2/6
since there are 6 pieces 1/3 would then equal 2 pieces. :)
Hope this helps:)