Abby is touring china for four days. the car rental is $38.15 per day plus 12 1/2 cents per mile. if abby drives 380.5 miles, how much does she owe the rental company ?

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation