Sara is traveling home from a friends house. she drives 80 miles in 2 hours. if the total trip is 100 miles, how long will it take her to get home, assuming she travels at the same rate throughout her trip

2.5 hours (2 hours 30 Mins)

Step-by-step explanation: I used division to divide the miles according to the hours. I found a pattern to help discover answer.  This does not always work but in this case it did !

15min10 miles

30min20 miles

1 hour40 miles

1hour30min60 miles

2hours80 miles

2 hour30min100 miles

3 hours120miles

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?