So the equation would be 52/x (x being the number of total number of 7th graders) and 26/100 (100 being 26% out of 100%).
You do cross multiplying which would be 52/x = 26/100 ------ 5200 = 26x
You divided 26 by both sides.
5200/26=200
There are 200 7th graders total.
Answer: (ln10)/6=t
Step-by-step explanation: e is an irrational number, like pi. Therefore the only variable to solve for is "t." Divide both sides by 4, then subtract (1/4) from both sides to get 10. Then take the natural log of both sides because you get rid of e on the left side, and you have the variable by itself. Natural log, or ln, represents loge base e, so dividing both sides by 6, we get t! I hope this helps!
To solve this problem, divide both sides by 5 and you get a ratio of 24 to 1. The answer is 24 minutes per night. I hope this helped!
