Question

HELP PLEASE APPRECIATED Margarita is driving at the speed of s-4/ s^2- 9s + 20 miles per hour.

The distance Margarita covers in s-5/4 hours is ___ miles.
Give the answer in simplest form.

Only correct answers and please show your work so I can refer to it on my other problems. thank you.

Answer 1

d = V • t    ...    displacement = velocity • time 
d = [(s – 4) ⁄ (s² – 9s + 20)] • [(s – 5) ⁄ 4]    ...    rearrange terms 
d = (s – 4) • (s – 5)   ⁄   [4(s² – 9s + 20)]    ...    factor denominator 
d = (s – 4) • (s – 5)   ⁄   [4(s – 4) • (s – 5)] 
d = ¼ mile