Question 440946
330/x=330/(x+11)+1
330(x+11)=330x+x2+11x
330x+3630=330x+x2+11x
0=x2+11x-3630
0=(x-55)(x+66)
x=55 or -66
Throwing out the negative answer, we get Rainey's speed from Tucson to be 55mph, her return trip was 66mph..