You should get the app "photomath" that will help out alot!!!
For any equation with more than one variable, there is either no solution or infinitely many solutions.
If we can find just <em>one</em> solution that works, that would eliminate the possibility of there being no solution, and so we could prove it to have infinitely many solutions.
Can we come up with at least one solution to these equations? Of course!
For x=y
Thinking of two equal numbers is extremely easy. For instance, if we chose x to be 2 and y to be 2, that's a solution right there! Thus x=y has infinitely many solutions.
It's just as easy picking two numbers that are equal when you multiply them by 1.25. Think back to the multiplication property of equality. If two things are equal, and you multiply them by a number, they will still be equal. So all we need is, once again, two equal numbers. 2 and 2, boom and boom. 1.25x=1.25y has infinitely many solutions as well.
28 + 18.25x = 161 -15x (here, x stands for every week this addition or withdrawal happens)
So:
28+18.25x = 161 - 15x
18.25x = 161 - 28 - 15x
18.25x = 133 - 15x
18.25x + 15x = 133
33.25x = 133
x = 133/33.25
x = 4
So, they will have the same balance in 4 weeks.
9/10 is greater than 6/10
6/10 <9/10
Answer:3.
Step-by-step explanation:
Given
Penguin dove to 130 feet below water surface
Then it swam 48 feet towards the water surface
So, penguin is 
below water surface
For water level penguin swam to 82 feet below it
Therefore 
represent the penguin swam to
