Darren paid $30.60 for nine gallons of gasoline. His car travels an average of 100 miles on 4 gallons. How much did it cost Darren to drive 75 miles? Explain how you found your answer.

$30.60 / 9  gallons = $3.4 / gallon

100 miles / 4 gallons = 25 miles / gallon

75 miles / 25 miles = 3

$3.4 multiplied by 3 = $10.2

It costs Darren $10.2 to drive 75 miles

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?