Answer:
n=30p=450
Step-by-step explanation:
10n+250=p
10×20+250=450
n=20 p=450
I think that the answer is 51/54.
First you need to find the common denominator of both fractions, 54.
1/9 is 6/54 and 5/6 is 45/54. 45+6=51. And the denominator goes on the bottom,making the answer 51/54.
Hope this helps!
There are infinitely many solutions of the system of equations, x + y = 1
and 2x + 2y = 2
Step-by-step explanation:
We need to find how many solutions are there to the system of equations.
Solving:
Multiply equation (1) with 2 and subtract with equation(2)
Since our answer is 0=0 so, there are infinitely many solutions.
Keyword: Systems of equations
Learn more about Systems of equations at:
#learnwithBrainly
How would I at least start out those two problems?
It looks to me like you already did. Now just follow through with it.
If the length of each side of the frame's inner dimension (i.e. the glass) is x, and the length of each side of the frame's outer dimension is x^2 - 3, then the area of the frame is:
A = (outer dimension)^2 - (inner dimension)^2
27 = (x^2 - 3)^2 - (x)^2
27 = x^4 - 6x^2 + 9 - x^2
27 = x^4 - 7x^2 + 9 <----- This is where you got to already.
0 = x^4 - 7x^2 - 18
0 = (x^2 - 9)(x^2 + 2)
Therefore, either x^2 = 9 or x^2 = -2... and you know it can't be the latter.
Thus, x^2 = 9 and therefore x = 3. The glass is 3" on each side.
<span>Each (outer) side of the frame is x^2 - 3 = 9 - 3 = 6" </span>
