Always use the inverse (opposite) operation. Ex. is 2x+4=10.
First subtract 4, and then divide by 2.
actually reverse of order of operations to solve.
Answer: 38 Videos
Step-by-step explanation:
Add Vikki’s and Chris’s videos (131+80=211)
If they rented 173 more than the average couple you need to subtract Vikki’s and Chris’s amount from 173 (211-173=38)
That will give you the average videos other couples rent
The answer i came up with is 0.68 i don't know if thats what you need or not. hopefully i helped.
800/$20 per square yard= 40 sq yards
15ft=5 yards
40 sq yds/5 yards= 8 yards or 24 feet
length= 24 feet or 8 yards