1 centimeter = 10 milimeters.
Therefore, 8.5 centimeters squared = 85 millimeters squared.
Answer:
Step-by-step explanation:
The area of a rec tangle is A x W
but first you have to find the area of the triangle wich is going to be 127.5.
Then you have to multiply 127.5 times 15.
And that will give you 1,912.5.
I think this is correct, but im not sure.
12h + 30w represents the amount paid to each employee.....where h is the number of hrs and w is the number of wagons sold.
working 6 hrs and selling 3 wagons.....so h = 6 and w = 3
12h + 30w = total pay
12(6) + 30(3) =
72 + 90 =
162 = total pay <===
Answer:
x=7
y=8
Step-by-step explanation:
-Given that the mean and median is the same.
-Let b=mean =median
#Given that the set is arranged in order and is even:
![median=\frac{n+1}{2}\\\\Median=3^{rd} \ term\\\\=x](https://tex.z-dn.net/?f=median%3D%5Cfrac%7Bn%2B1%7D%7B2%7D%5C%5C%5C%5CMedian%3D3%5E%7Brd%7D%20%5C%20term%5C%5C%5C%5C%3Dx)
Hence:
![b=median=mean\\\\b=x\\\\\therefore mean=median=x](https://tex.z-dn.net/?f=b%3Dmedian%3Dmean%5C%5C%5C%5Cb%3Dx%5C%5C%5C%5C%5Ctherefore%20mean%3Dmedian%3Dx)
-Applying the mean formula:
![\bar x=\frac{1}{n}\sum{x_i}\\\\\therefore 5x=4+6+x+y+10\\\\4x=20+y\\\\x=5+0.25y](https://tex.z-dn.net/?f=%5Cbar%20x%3D%5Cfrac%7B1%7D%7Bn%7D%5Csum%7Bx_i%7D%5C%5C%5C%5C%5Ctherefore%205x%3D4%2B6%2Bx%2By%2B10%5C%5C%5C%5C4x%3D20%2By%5C%5C%5C%5Cx%3D5%2B0.25y)
#Since the number are in order:
![6](https://tex.z-dn.net/?f=6%3Cx%3Cy%3C10%5C%5C%5C%5C%5C%23let%5C%20x%3D7%2Cy%3D8%5C%5C%5C%23Substitute%5C%5C%5C%5C7%3D5%2B0.25%288%29%5C%5C7%3D7%5C%5C%5C%5C)
Hence, x=7 and y=8
Answer:
+10 or -10
Step-by-step explanation:
square root both sides