The first 8 in 8,644.58 is ten thousand and the second 8 is hundreth!
Answer:
8.50
Step-by-step explanation:
Find the unit rate.
51/6 = 8.5
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.
Theres an app called photomath that could easily solve problems like this
