darnell's car used 8 gallons of gasoline to travel 340 miles. after a mechanic work on teh 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?

Answers

Answer 1

Answer: What we are going to do for this case is find the cost for each case:
Cost to run the car before the mechanic worked on it:
$(4) * (8) = 32 dollars (32) * (1/340) = 0.09 dollars / mile$
Cost to run the car after the mechanic worked on it:
$(4) * (7) = 28 dollars (28) * (1/350) = 0.08 dollars / mile$
The difference between both cases is:
$0.09 - 0.08 = 0.01 dollars / mile$
Answer:
It cost to run the car after the mechanic worked on it 0.01 $ / mile less than before the mechanic worked on it.

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Answers

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Tomas learned that the product of the polynomials (a + b)(a2 – ab + b2) was a special pattern that would result in a sum of cubes, a3 + b3. His teacher put four products on the board and asked the class to identify which product would result in a sum of cubes if a = 2x and b = 1.

Answers

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