Check the picture below.
make sure your calculator is in Degree mode.
What I'm confused do u want us to tell u the before and after ratios or the rate of change?
I think the answer is the 3rd rectangle but I'm not too sure I'm sorry
Answer:
5.2%.
Step-by-step explanation:
After 1 hour (60 / 100) * 700 = 420 gallons of beer have been exchanged.
So we have 420 gallons of 6% and 280 gallons of 4% after 1 hour.
So the strength at that time = (420* 6) + 280*4) / 700
= 5.2%.
