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Reprerut tuia date with bislogmWhat is tbe mean miles per gallon tbat bis car Keta?"hat tke populatica varisnc? 02 0l tkis data st?!ahad; is tbe populatinm *au...

Question

Reprerut tuia date with bislogmWhat is tbe mean miles per gallon tbat bis car Keta?"hat tke populatica varisnc? 02 0l tkis data st?!ahad; is tbe populatinm *audauu uvistiou o3thic Upla Det?

Reprerut tuia date with bislogm What is tbe mean miles per gallon tbat bis car Keta? "hat tke populatica varisnc? 02 0l tkis data st? !ahad; is tbe populatinm *audauu uvistiou o3thic Upla Det?



Answers

At the beginning of a trip, the odometer on a car reads 30,680, and the car has a full tank of gas. At the end of the trip, the odometer reads 31,077 . It takes 13.5 gal of gas to refill the tank. a) What is the average rate at which the car was traveling, in miles per gallon? b) What is the average rate of gas consumption in gallons per mile?

On this long road trip, We're told that we travel a distance of 832 miles And the time to do this is done in 21 hours and we're going to use 31 gallons of gasoline in this trip. So for part a determine the average speed in MPH. So your average speed, which would be our velocity, it's equal to distance over time. Mhm. Similar distance is 832 miles over 21 hours. And around this off to to sake figs, we get 40 yeah, yeah, MPH. Beer, average speed for b Yeah, it's actually the average speed in kilometers per hour. So If we know that we have 40 MPH And a conversion here, one mile to put into 1.609 km. This is equal to, yeah, To say things once again, this is 40 decimal to sig figs 64 Yeah, kilometers per hour. The average speed in kilometers per hour and for part C, let's calculate the gas mileage in kilometers per leader. So our mileage here, we need a total distance travel. Mhm Over the volume of fuel. Okay. Yeah, and we want this in kilometers per leaders, so we already know that were traveling 64 kilometers Per hour, so it's 830 few miles. Mhm. Let's convert this two km. So one mile to go into 1.609 km and then our volume of the fuel, we're told we are Using 31 gallons, but we need to convert this into leaders. So a conversion here is one gallon Is equivalent to three points 75 6 leaders. So if we work on the numerator here carry some extra sig figs here. So 832 It was 1.6 or nine Is 1300 and 38.688 km over 31 times 3.78 56 117 3536 leaders. And we're going to round this off to, to say figs here and to to sig figs. I would report this as 11 kilometers per litre would be our gas mileage reported in units of kilometers per leaders.

In this question, we have to identify the variable. The variable in this case is going to be every smiles for gallon, right average miles for gallon. This is going to be my answer for part eight. But B is asking us whether this is a qualitative or quantitative variable. Okay, so average miles now miles means it can be anything. Maybe 25. 27 pointed 30 35.4 80. Anything, right? Although it is not very practical, but it can be. Who knows? So this is going to be a quantitative. A quantitative variables. Fine. Now what is part C asking? What is the implied population? Okay, all new hybrid small cars is going to be our implied population. So all new hybrid small cars, all new hybrid. Yeah, small cars. These are my answers.

In part we need to calculate the average speed, the average speed. This is equal to distance table. We had a great time taken. So the distance civil is the difference between the meter reading. So it will be close to 124, minus 12 If I have to you worried where I am taken, The time taken is two hours. So it will be equals two 16 4 divided by two. It is equal to I did too. You learned with the but our So this is the average speed. In part B. We need to calculate, we need to calculate the velocity. The velocity is equal to displacement divided by time taken. So here since the car is starts from from from a point and returns again to the same point, so displacement is equal to zero divided by time taken. So the last will come out with zero.

Yeah, for this problem we have G. V. Being the fuel efficiency and MPG. I'm of a car going at speed V MPH. So Gov has a unit of miles per gallon. Um And V has a unit of miles her our based on this, we see that jeep crime of the is equal to D g t. V. And that's going to have a unit of yeah um hours kurt gallon. Um, It will also have the units of miles per gallon or MPH miles miles per gallon times miles per hour. I'd be how it represents the units for this in particular. As you see here.


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