Answer:
10/11>9/11>7/11
Step-by-step explanation:
It is 10 out of eleven which is bigger than 9 out of eleven which is bigger than 7 out of eleven.
Answer:
-4 or 5
Step-by-step explanation:
let number be x
x²-x=20
Rearrange
x²-x-20=0
(x+4)(x-5)=0
Separate
x+4=0, x-5=0
x=-4 or 5
Answer:

Step-by-step explanation:
Let number of pounds of cans collected by Amy = 
Let number of pounds of cans collected by Bruce = 
Let number of pounds of cans collected by Carlos = 
As per question statement, total number of cans collected = 168
..... (1)
Number of pounds collected by Bruce is
rd of the pounds of cans collected by Carlos.

Number of pounds collected by Amy is equal to number of pounds collected by Bruce and Carlos combined.
Using equation (2):

Using equations (2) and (3) in equation (1), we get:

Using equation (2):
