Answer:
3r+5
Step-by-step explanation:
Since -5r and 8r both have r in them, we can combine them and the expression looks like:
3r+5
Which is our answer.
Answer: 680
Step-by-step explanation:
When order doesn't matter,then the number of combinations of choosing r things out of n = 
Given: Total participants = 17
From these, a group of 3 participants is to be tested under a special condition.
Number of groups of 3 participants chosen = 
Hence, there are 680 groups of 3 participants can be chosen,.
<span>The number of people at the Cineplex were 1,486. At the 6 cinemas. there were between 1400 and 1500 people. Therefore, the total number of the people in each of the 6 cinemas is between 1400 and 1500. I hope that my answer is helpful! Let me know if you need something more :)I hope that I could help :) sometines those questions are tricky. Let me know if you need additional help</span>
Answer:
-2/10
Step-by-step explanation:
First step
2 ( 3) 6
_ x -(_) = - __
6 ( 5) 30
Simplified
6 1
-__ = - _
30 5
