Answer:
72
Step-by-step explanation:
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
The answer would be simplified to q-8 after combining the like terms (:
The answer is C bc y=5x is a direct variation
1/3x is the slope of the line i think
