49 / 7 = 7
63 / 7 = 9,
You place 7 over 9 and you get your answer!
7/9
Answer:
D) All three have the same correlation coefficient.
Seven thousand two hundred thirty one divided by twenty-four
Answer:
I believe the answer ur looking for is 3 (D)
Step-by-step explanation:
First, let x be the number of hours it will take for Hector to finish the same job alone. This means that every hour, Hector can do 1/x of the job. The amount of work done by Shawn and Hector in 6 hours should be equal to 1 complete work. This can be expressed as,
(1/9 + 1/x)(6) = 1
The value of x is 18. Thus, Hector can to 1/18 of the job in one hour.