Answer: 5 gallons
Step-by-step explanation: 200 is your total. You start with 50 and the car travels 30 miles per gallon so in the equation it should look like 30g. All together it should look like this 200=50+30g.
From here you slove by subtract 50 from both sides and get:
200 - 50 = 150
50 - 50 = 0
150 = 30g
Then you divide on both sides to get g or gallons alone.
150 / 30 = 5
30 / 30g = g
5 = g
Final answer is 5 gallons
The Blakely family has driven 50 miles of a 200-mile trip. Their car travels 30 miles per gallon of gas. 5 gallons of gasoline, g, will the car use on the remainder of the trip.
The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
The Blakely family has driven 50 miles of a 200-mile trip. Their car travels 30 miles per gallon of gas.
By subtracting 50 from both sides and get:
200 - 50 = 150
50 - 50 = 0
150 = 30g
By dividing into both sides to get g or gallons.
150 / 30 = 5
30 / 30g = g
5 = g
Therefore, The final answer is 5 gallons.
Learn more about the unitary method;
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