nyceastcoast
27.06.2020 •
Mathematics
Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 430 miles on 10 gallons of gas. How far could you drive on 55 gallons of gas? What is the car's gas mileage?
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Ответ:
With 55 gallons of gass the car is able to travel 2,365 miles. Its mileage is 43 miles per gallon.
Step-by-step explanation:
Since the car ran 430 miles on 10 gallons of gas, we can calculate its mileage by dividing the distance traveled by the amount of gas used, so:
If he had 55 gallons of gas on the tank, then he'll be able to travel:
With 55 gallons of gass the car is able to travel 2,365 miles. Its mileage is 43 miles per gallon.
Ответ:
The surveyor is 36.076 kilometers far from her camp and her bearing is 16.840° (standard form).
Step-by-step explanation:
The final position of the surveyor is represented by the following vectorial sum:
(1)
And this formula is expanded by definition of vectors in rectangular and polar form:
(1b)
Where:
- Resulting coordinates of the final position of the surveyor with respect to origin, in kilometers.
- Length of each vector, in kilometers.
- Bearing of each vector in standard position, in sexagesimal degrees.
If we know that , , and , then the resulting coordinates of the final position of the surveyor is:
According to this, the resulting vector is locating in the first quadrant. The bearing of the vector is determined by the following definition:
And the distance from the camp is calculated by the Pythagorean Theorem:
The surveyor is 36.076 kilometers far from her camp and her bearing is 16.840° (standard form).