Answer:
Step-by-step explanation:
3x + 5x + 12x = 240
20x = 240
x = 12
Totals: 36 (3*12), 60 (5*12), 144 (12*12)
6x^2+5x-6 would be your answer! :)
-10x + 1 + 7x =37
-10x + 7x = 37 - 1
-2x = 36
X = 36 / -2
X = -18
Answer is x = -18
I think this is the answer
Hope it helps •-•
To convert a percent to a decimal, you move the the decimal left two places to convert the percent to a decimal. For example, if you were to convert 14% to a decimal, you move the decimal left two places so that 14% converted to a decimal would look something like this: 0.14
In the given question it is already mentioned that a 64 gallon tank contains 45 gallons of oil. Out of the 45 gallons 4/5 th of the quantity is sold. It can be said that the full tank capacity of 64 gallons is of no use to the problem.
Now getting to the equation part of the problem.
Quantity of oil removed = (4/5) * 45 gallons
= (4 * 9) gallons
= 36 gallons.
So it can be said that 36 gallons of oil from the total of 45 gallons has been sold.