Answer:
-20(r-1)
o
-20r+ 20
Step-by-step explanation:
Step-by-step explanation:
Here, in step format, is how to solve a system with three equations and three variables:
Pick any two pairs of equations from the system.
Eliminate the same variable from each pair using the Addition/Subtraction method.
Solve the system of the two new equations using the Addition/Subtraction method.
I I think you have the correct answer!
16/20 = 0.8
Each bag will have to weight 0.8 lbs
Number 7 I believe the answer is 74.
