Answer:
About 5 hr 10 min
Step-by-step explanation:
rate 1 = 1 pool / 9 hrs rate 2 = 1 pool / 12 hours
now find the time with both rates combined
1 pool / ( 1/9 + 1/12) = 1/ (7/36) = 36/7 hr = 5 1/7 hr = 5 hr 8.6 min
Use an online converter that you may search for on google. com, and learn the method too
To do this you want to first add 9 1/2 to 62 1/4. 9 1/2 is changed to 9 2/4. 9 2/4 plus 62 1/4 is 71 3/4. Now you have to add 2/14 to 71 3/4 to find how tall their father is. 2/14 plus 71 3/4 is 74. Their dad is 74 inches tall which is equal to 6 feet 2 inches.
Answer: your answer should be 0.51
Some people are saying it's 0.04 but that is the wrong answer.
