Answer: D.
Step-by-step explanation:
You can find the answer to this by using the FOIL method.
This stands for "First, Outside, Inside, Last", and tells you how to multiply the numbers inside the parentheses:
- First: 2*6
- Outside: 2*9
- Inside: -3*6
- Last: -3*9
So, you have 12 + 18 - 18 - 27.
You need 5 more gallons for a full tank.
Since it takes 10 gallons to increase the gauge from 1/4 to 3/4 (change of 2/4 which is the same as 1/2), it must have taken 10 gallons to fill up to halfway for the tank.
Thus the full amount would be 10*2 = 20 gallons
However, since there is already 3/4 gasoline in the tank, we only need an extra 1/4 of 20 for it to be full.
So, 20*1/4 = 5
We need to add 5 gallons for a full tank.
Step-by-step explanation:
here is your answer bro..just use the formula and keep the value