A motorcyclist used 3.21 liters of gasoline to travel from Greenfield to Milltown. The next day he traveled from Milltown to New Haven, using another 1.95 liters of gasoline. About how much gas did he use on the two trips?
a:about 4 liters
b:about 3 liters
c:about 5 liters
d:about 6 liters
C?
Right.
To find the total gas used on the two trips, you need to add the amount used from Greenfield to Milltown (3.21 liters) to the amount used from Milltown to New Haven (1.95 liters).
3.21 + 1.95 = 5.16 liters
Rounded to the nearest whole number, the motorcyclist used about 5 liters of gas on the two trips. So, the correct option is C: about 5 liters.
To find out how much gas the motorcyclist used on the two trips, we need to add the amount of gas used on each trip.
The motorcyclist used 3.21 liters of gasoline to travel from Greenfield to Milltown.
Then, the motorcyclist used an additional 1.95 liters of gasoline to travel from Milltown to New Haven.
To find the total amount of gas used, we can simply add these two values:
3.21 liters + 1.95 liters = 5.16 liters
Therefore, the motorcyclist used about 5 liters of gasoline on the two trips.
So, the correct option is c: about 5 liters.