Question
Davin keeps a record in graph form of how far his car travels and the number of gallons of gasoline it uses. What is the number of gallons that Davin uses per 32 miles?
- 1 gallon
- 2 gallons
- 4 gallons
- 8 gallons
Hint:
Davin keeps record of graph about number of gallons of gasoline used while he was traveling. Here we have to find out the number of gallons in per 32 miles. To find that we have given graph. First find the how much miles its takes for 1 gallon and then multiply it to 32 . This help you to find the solutions.
The correct answer is: 1 gallon
Here we have to find out the total gallons of gasoline used per 32 miles.
Firstly , we have given graph, x-axis is gallons of gasoline and y-axis is miles.
According to graph, it has 3 point ,
Lets take points be a,b,c
We can easily tell the coordinate of b is (2,64) , which says that
The number of gallon used is 2 (it is x-axis coordinate) and miles travels is 64 ,
So here , for 64 miles its takes 2 gallons of gasoline,
To find 1 gallon , we have:
2 gallons = 64 miles
For 1 gallon we have to divide both side by 2 , we have
2/2 gallons = 64 /2 miles
1 gallons = 32 miles
Therefore , at per 32 miles car used 1 gallon of gasoline.
The correct answer is 1 gallon (option (a)).
To find the solution we have focus on the given coordinate on the graph. It will help you to find the x and y coordinate by that you can easily find the solution. And also find for one thing first and then by that you can easily find given thing. Apply the same concept in similar questions.
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