Question
You pass a road sign saying "New York 125 km." If you drive at a constant speed of 65 mi/h, how long should it take you to reach New York? (Round to the nearest minute.) If your car gets 28 miles to the gallon, how many liters of gasoline are necessary to travel 125 km?
Answers
wanda
125* (0.622/1)= 77.75
77.75* (1/65)= 1.19615= 1.2 hours
77.75*(1/28)= 2.77679
2.77679*(3.77/1)=10.4685= 10.5 L of gas
77.75* (1/65)= 1.19615= 1.2 hours
77.75*(1/28)= 2.77679
2.77679*(3.77/1)=10.4685= 10.5 L of gas
DrBob222
This is chemistry??? Looks like math to me.
125 km = 77.7 miles. Check that !
d = r*t
77.7 = 65*t. Solve for t in hours.
28 mi/gallon x ? gallons = 77.7 miles
? gallons = 77.7/28 = 2.8 gallons
2.8 gallons x 3.78 L/gallon = ? L
125 km = 77.7 miles. Check that !
d = r*t
77.7 = 65*t. Solve for t in hours.
28 mi/gallon x ? gallons = 77.7 miles
? gallons = 77.7/28 = 2.8 gallons
2.8 gallons x 3.78 L/gallon = ? L
James
^^^^ 2.8 gallons x 3.78 L/gallon = 10.584 L