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Gala2k [10]
3 years ago
5

Find the value of x.

Mathematics
2 answers:
KatRina [158]3 years ago
7 0
The value of x=x because x can be anything, it can even be a negative or a fraction but mostly a whole or negative number
katrin2010 [14]3 years ago
4 0

x=13

6x + 4 +8x - 6= 180

14x - 2 = 180

14x = 182

x = 13

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3 years ago
The fuel efficiency for a 2007 passenger car was 31.2 mi/gal. For the same model of car, the fuel efficiency increased to 35.6 m
Ierofanga [76]

We have been given that fuel efficiency for a 2007 passenger car was 31.2 mi/gal and the same model of car, the fuel efficiency increased to 35.6 mi/gal in 2012. Also, the gas tank for this car holds 16 gallons of gas.

We need to write a function and graph a linear function that models the distance that each car can travel for a given amount of gas up to one tankful.

Let represent the functions as d_{1}(x) and d_{2}(x)  where d_{1} and d_{2} represent the distances traveled by car in years 2007 and 2012 and x represents the number of gallons. Therefore, we can express the required functions as:

d_{1}(x)=31.2x \text{ and } d_{2}(x) = 35.6x

Domain of both these functions are [0,16] and ranges are [0,499.2] and [0,569.6] respectively for years 2007 and 2012.

The difference function will be:

f(x)=35.6x-31.2x\\&#10;f(x)=4.2x

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Domain of this function is [0,16] and range is [0,67.2].

The graphs are shown below.


3 0
3 years ago
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