Answer:
If your looking for inequality then its x<12
Step-by-step explanation:
Move constant to the right and calculate
6 hours
We can use ratios to solve
10 hours x hours
-------------- = -------------
15 logs 9 logs
Using cross products
90 = 15x
Divide by 15
90/15 = 15x/15
6 = x
the answer is 1 2/3 - 1 3/7 ÷ (1/2+ 4/7) = 2/9
