In Europe, cars' gas consumption is measured in liters per 100 kilometers. In the United States, the unit used is miles per gallon. a) How are these units related? b) How many miles per gallon does your car get if it consumes 12.2 liters per 100 kilometers? c) What is your car's gas consumption in liters per 100 kilometers if it gets 27.4 miles per gallon? d) Can you draw a curve plotting miles per gallon versus liters per 100 kilometers? If yes, draw the curve.

Short Answer

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#tag_title# Short Answer The relationship between liters per 100 kilometers and miles per gallon is given by the conversion formula: $$\text{MPG} = \frac{100 \times 0.621371}{\text{Liters per 100km} \times 0.264172}.$$ To convert from liters per 100km to miles per gallon, apply this formula. For example, given a car consumes 12.2 liters per 100 kilometers, it gets approximately 23.55 miles per gallon. To convert from miles per gallon to liters per 100 km, rearrange the conversion formula and substitute the given value. For example, given a car gets 27.4 miles per gallon, it consumes approximately 8.64 liters per 100 kilometers. The function relating miles per gallon and liters per 100 km is a hyperbolic curve, which can be plotted using graphing software or a graphing calculator.

Step by step solution

01

Conversion formula

To convert gas consumption from liters per 100 kilometers to miles per gallon, we can use the following formula: $$\text{MPG} = \frac{100 \times 0.621371}{\text{Liters per 100km} \times 0.264172}.$$ #b) Conversion from liters per 100 km to miles per gallon#
02

Calculate miles per gallon

Given that the car consumes 12.2 liters per 100 kilometers, we will use the conversion formula to find the miles per gallon: $$\text{MPG} = \frac{100 \times 0.621371}{12.2 \times 0.264172} \approx 23.55.$$ So, the car gets approximately 23.55 miles per gallon. #c) Conversion from miles per gallon to liters per 100 km#
03

Calculate liters per 100km

Given that the car gets 27.4 miles per gallon, we can rearrange the conversion formula to find the gas consumption in liters per 100 kilometers: $$\text{Liters per 100km} = \frac{100 \times 0.621371}{\text{MPG} \times 0.264172} \approx \frac{100 \times 0.621371}{27.4 \times 0.264172} \approx 8.64.$$ So, the car consumes approximately 8.64 liters per 100 kilometers #d) Drawing the curve#
04

Relationship between MPG and Liters per 100km

From the conversion formula: $$\text{MPG} = \frac{100 \times 0.621371}{\text{Liters per 100km} \times 0.264172}.$$ Rearranging for MPG, we get the following equation: $$\text{MPG} = \frac{1}{\text{Liters per 100km} \times 0.035274}.$$ This is a function of Liters per 100km which maps 0 to infinity as miles per gallon increases. So, we can draw a curve for this function. The curve can be plotted using graphing software (e.g., Desmos or a graphing calculator) by inputting the function or creating a table of values for various values of Liters per 100km and using those values to plot points on a graph showing MPG on the y-axis and Liters per 100km on the x-axis. The resulting curve will be a hyperbolic curve, with the two axes as asymptotes.

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