Ok so,
160 divided by 7.75 = 20.65
therefore,
150 divided by 20.65 = 7.265625 gallons or 7.27 (2 d.p)
X+4x=35-20. 5x=35-20. 5x=15. X=3
Answer: x=3
Step-by-step explanation:
To find the zeros, you want to first factor the expression.
x³+x²-36
(x-3)(x²+4x+12)
Now that we have found the factors, we set each to 0.
x-3=0
x=3
Since x²+4x+12 cannot be factored, we can forget about this part.
Therefore, the zeros are x=3. You can check this by plugging the expression into a graphing calculator to see the zeros.
The Bigger weight minus the lower weight
