Answer:
1. 15-5x 2. 54+18x 3. 3x+15 4. 28x+56
Step-by-step explanation:
I dont get if you need this or the real answer if you need the real answer let me know and I will give you the real answer. :) Have a good day!
Answer:
2 hours = 4 * 30 minutes
30 * 3 = 90
90 * 3 = 270
270 * 3 = 810
810 * 3 = 2430
So after 2 hours you will have 2430 bacteria cells.
Step-by-step explanation:
Find the change
the change is 63-21=42
42 degrees in 12 hours
we want to find xdegrees/1hour
42/12=3.5 degrees per hour
The answer is A. this is because your are multiplying by 9 throughout
