Answer:
9.09090909091% decrease
Step-by-step explanation:
1 - 10/11 = 1/11 = 9.09090909091%
Based on the emperical rule
the distribution will be as follows
btwn 80 n 85 on the test - 34%
btwn 80 n 95 on the test - 82%
below 85 on the test - 50%
<span>above an 80 on the test - 84%</span>
2/3 of the cake would be 2/3 of 15 slices, or 10 slices.
This leaves (15 slices - 10 slices), or 5 slices.
Step-by-step explanation:

Step-by-step explanation:
Let x = number of games that Alex played
The total money that he spent C is given by
If he spent $45, then we can write

Solving for x, we get

This means that Alex played 15 games.