Answer:
1390 cm^3
Step-by-step explanation:
9 x 7 x 10 = 630 cm^3 for the rectang prism top
area * 10 for the bottom
8 x ( 12 + 7)/2 * 10 = 760 cm^3 for the trap base
total = 1390 cm^3
Your answer is B F(x) * (0.5)^x
First, find the area for the kitchen floor: 16.5*15=247.5 squared feet
Then find the area for one tile: 0.5*0.5=0.25 squared feet
Finally, divide the mayor area between the minor: 247.5/0.25= 990 tiles.
Also you can do it in this another way:
First, divide length of the kitchen floor between the length of one tile: 16.5/0.5=33
Then, do the same for the height: 15/0.5=30
Finally multyply both results: 33*30= 990 tiles.
Solve the second equation for y so that you can substitute it in for y in the first equation..
y = 5x - 4
Substitute:
3x + (5x - 4) = 1