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.
I would just set it up as a proportion and cross multiply. 68/2=110/? or 2/68=?/110
what is the ? for
The ? is the answer. You solve for that.
how like what do i do
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.
To determine the number of gallons you would use on a 110-mile trip, you can use the concept of proportional reasoning.
Step 1: Find the ratio of miles to gallons used in the given situation.
In the given situation, 68 miles use 2 gallons of gas. So, the ratio of miles to gallons is 68 miles : 2 gallons, which can be simplified as 34 miles : 1 gallon.
Step 2: Apply the ratio to the new distance.
Now, we can use the ratio from the given situation to find the number of gallons used on a 110-mile trip.
110 miles ÷ 34 miles/gallon = 3.235 gallons
Step 3: Round to the nearest tenth of a gallon.
Rounding 3.235 to the nearest tenth of a gallon would give you 3.2 gallons.
Therefore, on a 110-mile trip, you would use approximately 3.2 gallons of gas.