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laiz [17]
3 years ago
13

Darnell's car used 8 gallons of gasoline to travel 340 miles. After a mechanic worked on the car, it used 7 gallons of gasoline

to travel 350 miles. If the price of gasoline was approximately $4.00 per gallon, how much less, to the nearest cent per mile, did it cost to run the car after the mechanic worked on it?
Please Show Work!!
Mathematics
1 answer:
krek1111 [17]3 years ago
3 0
8*4=32
7*4=28

340÷32=10.625
350÷28=12.5

12.5-10.625= 1.875
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Answer:

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Step-by-step explanation:

Rewrite x^{2}-6x+7=0 in the form

(x-a)^{2}=b

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To Find:

a = ?

b = ?

Solution:

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Which can be written as

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Adding half coefficient of X square on both the side we get

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Therefore,

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Substituting in equation 1 we get

(x-3)^{2}=2

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(x-a)^{2}=b

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a = 3 and b = 2

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Step-by-step explanation:


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