# 10th grade algebra not ms.sue

posted by .

a 68 mile trip uses 2 gallons of gas. how many gallons would you use on a 110 mile trip? round to the nearest tenth of a gallon.

• 10th grade algebra not ms.sue -

I would just set it up as a proportion and cross multiply. 68/2=110/? or 2/68=?/110

• 10th grade algebra not ms.sue -

what is the ? for

• 10th grade algebra not ms.sue -

The ? is the answer. You solve for that.

• 10th grade algebra not ms.sue -

how like what do i do

• 10th grade algebra not ms.sue -

68 = 110
---- ----
2 x

This is how to set up the proportion that zorro was talking about, although he did it incorrectly.
Cross multiply:
110 (2) = 220
68 (x) = 68x

Therefore:
220 = 68x

Solve for x by dividing by 68 on both sides.

## Similar Questions

1. ### HELP!!!!!

a 68 mile trip uses 2 gallons of gas. how many gallons would you use on a 110 mile trip?
2. ### Intermediate Algebra

A car used 3.5 gallons to make a 110 mile trip. How many gallons of gas would it take the same car to make a 360 mile trip
3. ### Math

Maria uses 5 1/3 gallons of gas to drive to work and back four times. How many gallons of gas does Maria use in round trip to work?
4. ### algebra

If a 204-mile trip took 8 1/2 gallons of gas, how many miles can be driven with a full tank of 20 gallons Thank you for your help and it is appreciated,
5. ### math

. Darya's car averages 36 miles per gallon. How many gallons of gas will she need for a 480-mile trip?
6. ### Math

Beth's car has a gas tank that can hold 15 gallons of gas. Her car uses 1/30 of a gallon of gas per mile driven. Darcy's car has a gas tank that can hold 16 gallons of gas. His car uses 1/25 of a gallon of gas per mile driven. Both …
7. ### algebra word problem

My car gets 19 miles per gallon in the city and 34 miles per gallon on the highway. Suppose I used 12.857 gallons of gas and got an average of 27 miles per gallon for the trip. How many gallons did I use for each part of the trip?
8. ### Algebra

My car gets 13 miles per gallon in the city and 30 miles per gallon on the highway. Suppose I used 15.867 gallons of gas and got an average of 15 miles per gallon for the trip. How many gallons did I use for each part of the trip?
9. ### algebra

car averages 20 miles per gallon of gas in city driving and 30 miles per gallon in highway driving. At these rates, how many gallons of gas will the car use on a 300-mile trip if 4/5 of the trip is highway driving and the rest is city …
10. ### Algebra

The Blakely family has driven 50 miles of a 200-mile trip. Their car travels 30 miles per gallon of gas. How many gallons of gasoline, g, will the car use on the remainder of the trip?

More Similar Questions