4 / 0.80 = 12 / x...cross multiply
4x = 0.80 * 12
4x = 9.6
x = 9.6 / 4
x = 2.4.....12 apples cost $ 2.40
Written as an expression, the statement 'the sum of the square of a number and 34' would look like this:
![n^{2} +34](https://tex.z-dn.net/?f=n%5E%7B2%7D%20%2B34)
Hope that helped! =)
The size of the triangle is 55 degrees.
First of all, we need to deduce the price of a single camera:
![\dfrac{1800}{12}=150](https://tex.z-dn.net/?f=%5Cdfrac%7B1800%7D%7B12%7D%3D150)
Now, we know that he profits 36 dollars from each camera. So, we are asking: which percentage of 150 is 36? We have
![36 = 150\cdot\dfrac{x}{100}](https://tex.z-dn.net/?f=36%20%3D%20150%5Ccdot%5Cdfrac%7Bx%7D%7B100%7D)
This equation literally says: 36 is x-percent of 150. And we need to solve for x:
![x=\dfrac{36\cdot 100}{150} =24](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B36%5Ccdot%20100%7D%7B150%7D%20%3D24)
Answer:
No
Step-by-step explanation:
y = 2x -1
Substitute the point into the equation
4 = 2(3) -1
4 = 6-1
4 =5
This is not a true statement so the point is not on the line