for all u math smarties?

Question

ok theres 2 parts to this questionok heres part 1-you car gets 20 miles per gallon and the trip is 800 miles one way. if gas cost $1.95 per gallon, how much will gas cost for the trip there and back?

part 2- how long will the journey to your relatives home take if you travel 60 mph and stops total 1 hour?

show work please.

Answer 1

800*2*1.95/20 = $156

800/60 +1 = 14hours 20 minutes

Answer 2

Part 1:
800 miles x 2 (since its both ways)= 1600

1600miles/20 mpg = 80 gallons

80 gallons x 1.95 per gal = 156$

Part 2:
im assuming 800 miles is how far the relatives house is)

800 miles/60mph = 13 1/3hours + the hour stopping time = 14 1/3 hours

1/3 of an hour x 60min =20 min. So the final time is 14 hours and 20 min

Answer 3

Piece of cake:
1) our car does 20mpg and the trip is 800miles.
So we'll need 800/20 = 40 gallons of gas.
At $1.95/gal. all you do is 40 x 1.95 = $78.
But that's ONE WAY - you want roundtrip? multiply by 2 = $156.

2) Assuming that the "relatives home" is the home you wanna go to by traveling 800 miles....
800miles / 60mph = 13 and 1/3 hours or 13 hours and 20 minutes. Add one more hour of stops and the answer is 14 hours and 20 minutes.

Everything clear?

Answer 4

Part 1:
800/20 = 40 gallons * $1.95 = 78 each way, or $156 for a round trip.

Part 2:
800/60 = 13.33 + 1 = 14.33 (repeating) hours

Answer 5

first double the mileage for trip to and back

800*2=1600 mi

next divide that by 20 to figure out how many gallons of gas are needed

1600mi/20mi/gal = 80 gal

next multiply the cost per gallon.

80 gal * 1.95 dollars/gallon =$ 156

if you notice, if you keep units on the numbers they will cancel each other out as you go so you know if you are doing things correctly.

next

800mi / 60 mph = 13 hrs and 20 mins

plus add the hr for stops

14 hrs and 20 mins one way

Answer 6

The answer to part one is 40 times 1.95 (i dont know the multiplication off the top of my head)

Part two: Assuming its 800 miles as above, it would be 800 divided by 60, plus 1 hour

Get it?

Answer 7

Part 1
800m/20mpg = 40gal one way x 2 = 80 gals for the round trip
800m/ 20mpg = 40gal
40 gal x 2 = 80gal
80gal x 1.95 p/gal = $156

Part 2
speed is 60mph at one way is 800m
800m/60mph = 13.33 for one way
13.33h x 2 = 26.66 hour for round trip
26.66hours + 1 hour stop = 27.66 hours = 27 hours 40 mins for a complete round trip with the stop included

Answer 8

1600/20=80
80 galon * 1.95= 156$
part 2
1600/60=26.66 wht means 26 hours and 40 munite plus one hour itt's 27 hour and 40 munite fot the whole journey(go and back)

Answer 9

156 dollars

27 hours

kinda guessing,im only 11