(12,-1) or x=12 and y=-1
EXPLANATION:
you set both equations equal to each other by subtracting the sum and adding it to the equation. once you set them equal to eachother (x-2y-14=x+3y-9)
you can solve by moving everything to one side by subtracting. once you get it all to one side you can start adding common numbers and variables and solve
Answer:
D
Step-by-step explanation:
It's always 50% chance you'll win and 50% chance you'll lose.
Answer:
The amount in checking will always be twice in any week.
Step-by-step explanation:
Let's say, 
represents the week, 
represents the saving account and 
represents the checking account.
Balance in saving account in any week 
Balance in checking account in any week 
Translate the statement into mathematical equation. Remember to use " = " for word "is" in the given statement.
We have to find for 
.
Putting the values, we have:
Which means in each week the amount in checking is twice the amount in savings.
Best Regards!
Answer:
5 rooms
Step-by-step explanation:
4 rooms = 9 hours
9 hours = 540 minutes
1 room = 540 ÷ 4 = 135 minutes
60 x 12 = 720 minutes (12 hours)
720 ÷ 135 = 5.33333
5.3333 estimated to nearest whole number = 5
