8 Hours.
If you want his debt to be 0, as in he has nothing left to owe, we will set d (his debt) to 0
0 = 100 - 12.5h
Subtract 100 to move it to the other side
-100 = -12.5h
Divide each side by -12.5
8 = h
if we paint the tank on the outside, we'll be covering SA of surface area, however we're also painting it on the inside, so the area inside assuming the material thickness is negligible, we'll be covering SA as well, so we'll be needing SA + SA = 2SA ft² of paint to do the whole thing.
so, its diameter is 10, that means its radius is 5.
now, hmmm we know that 1 gallon can do 200 ft², how many gallons are there in 340π ft²?
1. Since no whole number can go into both 49 and 100 evenly.
Answer:
11v^2 - 8v + 1
Step-by-step explanation:
(4v^2 - 5v - 1) + (7v^2 - 3v + 2)
open brackets
4v^2 - 5v - 1 + 7v^2 - 3v + 2
place like terms together (remember signs remain same )
4v^2 + 7v^2 - 5v - 3v + 2 - 1
add or subtract like terms
11v^2 - 8v + 1