Answer: It will take Mary 9 more hours to read her book.
Step-by-step explanation:
Mary:
600x4=2,400
2,400/60=40
Sherry:
620x3=1,860
1,860/60=31
Mary vs. Sherry:
40-31=9
Hence, it will take Mary 9 more hours to complete her book.
Answer:
x (to the 2nd power)-8
A 81.2 is the answer
500,000 - 100%
10,000 - x
X = (100*10,000)/500,000 = 1,000,000/500,000 = 2%
Answer 2%