Answer:
ITS C: 2/3 in.
Step-by-step explanation:
edg 21 ^u^
DVD weighs 6lbs and game machine weighs 14lbs, so in this case A
in my mind this is what i did...
3(gameMachines) + 5(DVD) = 72lbs
3(gameMachine) + 1 (DVD) = 48lbs
when you subtract, since there is the same number of game machines, they cancel out and your left with
4(DVD) = 24
1 DVD = 6
then just fill in DVD in one of the equations to get the weight of gameMachine
3(gameMachines) + 5(6) = 72lbs
3(gameMachines) = 42
gameMachine = 14
Solution
Part 3
For this case we have 6 different terms
Part 4
We can do the following:
Part 5
And we can simplify on this way:
I am not positive but you have to divide by a certain #.
this probably isn't right but this is what the internet says 31/400
