Answer:
775
Step-by-step explanation:
We are given two equations in which we can perform systems of equations by putting these two equations on top of each other then solving for one variable:
x+y=15
x-y=25
Here, we can cancel out the y variable and get:
2x=40
x=20
Then we can put the x variable into any of the equations to solve for y (in this case I will use the equation x+y=15 so 20+y=15
y=-5
Now, we can solve by plugging both variables into 2x^2 - y^2 :
2(20)^2 - (-5)^2
800-25 = 775
I hope this helps!
Answer:
it would be -90⁰ because its clockwise its the opposite direction
Answer:
i dont knpw haha. sorry
Step-by-step explanation:
Answer:
81 pounds
Step-by-step explanation:
First find what 12.5% of 72 pounds is, so you can add that number to 72 pounds to find the ideal weight.
12.5% of 72 can be calculated by multiplying 72 by .
That is: pounds.
So the dog's ideal weight is 72 plus 9 = 81 pounds