Number of students N, y years
N = 700 + 50y
N = 700 + 50 x 10 = 1200 (C)
Left not painted percentage = 100 - 60 = 40 %
Left = 40/100 x 45 = 18 (H)
Decreasing in quantity according to the law is the definition of exponential decay. but what are the choices you can chose from?
<u>Answer</u>
x = 20
<u>Explanation</u>
Multiply the entire equation by 2 to get rid of the fraction.
x/2 * 2 = x
-4 * 2 = -8
6 * 2 = 12
Now, we have:
x - 8 = 12
To complete, add 8 to both sides
x = 20
Answer:
The 8 pounds bag
Step-by-step explanation:
Case 1 :
a pound cost 4/3
case 2 :
a pound cost 9/8
4×8 > 9×3
then

Therefore the 8 pound bag costs less