Answer: A
Step-by-step explanation: took the test, got it right.
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.
Answer:
24km
Step-by-step explanation:
distance = speed × time
speed = 80m/s
= 4.8km/min
time = 5mins
distance = 4.8 × 5
= 24km
