Answer:
Unsolvable
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)
There are 12 pencils.
<span>Red pencils + Blue pencils = 12 </span>
<span>There are twice as many red pencils as blue pencils </span>
<span>Red pencils = Blue x 2 </span>
<span>Substitute Red Pencils in the first question with blue x 2 </span>
<span>So the first equation is 2 x blue + blue = 12 </span>
<span>This will equal 3 blues = 12 </span>
<span>Divide both sides by 3 </span>
<span>Blues = 4 pencils </span>
<span>Reds = 2 x blues </span>
<span>Reds = 2 x 4 </span>
<span>Red = 8 pencils</span>
Answer:
![x = 19](https://tex.z-dn.net/?f=x%20%3D%2019)
Step-by-step explanation:
Given
Shape: Regular Dodecagon
Interior Angle = 8x - 2
Required
Determine x
The sum of n terms of a regular polygon is:
![Sum=180(n-2)](https://tex.z-dn.net/?f=Sum%3D180%28n-2%29)
Sides of a dodecagon is 12; So, we have:
![Sum=180(12-2)](https://tex.z-dn.net/?f=Sum%3D180%2812-2%29)
![Sum=180(10)](https://tex.z-dn.net/?f=Sum%3D180%2810%29)
![Sum=1800](https://tex.z-dn.net/?f=Sum%3D1800)
Each angle is gotten by dividing 1800 by 12
![Angle = \frac{1800}{12}](https://tex.z-dn.net/?f=Angle%20%3D%20%5Cfrac%7B1800%7D%7B12%7D)
![Angle = 150](https://tex.z-dn.net/?f=Angle%20%3D%20150)
Equate this to 8x - 2:
![8x - 2 = 150](https://tex.z-dn.net/?f=8x%20-%202%20%3D%20150)
Solve for x
![8x = 150 + 2](https://tex.z-dn.net/?f=8x%20%3D%20150%20%2B%202)
![8x = 152](https://tex.z-dn.net/?f=8x%20%3D%20152)
![x = 152/8](https://tex.z-dn.net/?f=x%20%3D%20152%2F8)
![x = 19](https://tex.z-dn.net/?f=x%20%3D%2019)
I think the answer would be D.
There is 30 students from each grade so we have 30/120 already then add 12 from 9th grade math and add 10 more from 10th grade math, then add 7 from 12th grade math.
30 + 12 + 10 + 7 = 59
59/120 students.
Answer:
C= $1t + x
Step-by-step explanation:
So, an organic gallon of milk is 1 dollar more then regular so the equation starts at $1 + x.
But then buying the organic milk over time is t so you add that to the one dollar since it applies to the organic milk. Now the equation is $1t + x.
But now, the expression we wrote is equal to C so, now the equation is C=$1t + x