Answer:
33 Students
Step-by-step explanation:
4:7 => 4+7 = 11 < 24 not enough
8:14 => 8+14 = 22 < 24 not enough
16:28 => 16+28 = 44 > 40 alot more
12:21 => 12+21 = 33
24 < 33 < 40
Answer:
-8 and 3
Step-by-step explanation:
-8x3 = - 24
-8+3=-5
N is the day it is, so since we are trying to find the number of problems for the 10th day, n will equal 10. The quantity of problems is doubling each day, so you will create this rule:
2^n - 1
Now, to plug in the numbers:
2^10 - 1
Then we simplify:
2^9
And now we solve this equation:
2^9 = 512