When going more than 38 miles per hour, the gas mileage of a certain car fits the model 4072-01-02-03-00_files/i012.jpg where x is the speed of the car in miles per hour and y is the miles per gallon of gasoline. based on this model, at what speed will the car average 15 miles per gallon? (round to nearest whole number.) a. 149 c. 48 b. 98 d. 73

y = 43.81 - .395x    let y = 15so we have

15 = 43.81 - .395x   subtract 43.81 from both sides

-58.81 = -.395x       divide both sides by -.395

x = about 149 mph  

ian gonna lie that is way to much

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)