point slope form
y-y1 = m(x-x1)
y-9 = 2(x-1)
change to slope intercept form
y-9 = 2(x-1)
distribute
y-9 = 2x-2
add 9 to each side
y = 2x-2+9
y = 2x+7
let sonia has the (x)
Sandeep would have twice as much as Sonia so (2x)
together they'd have 150.
so, x+2x=150
solve for X
3x=150
X=150/3
So x=50 is what Sonia has,
and Sandeep would have 2(50) =100
Answer:
20%
Step-by-step explanation:
We can start by finding out how much the price of the television was reduced by.
250 - 200 = 50
Now, we need to know what percent of 250 is 50? Let x represent the percent of 250 that is 50. Using this, we can set up an equation:
<u />![x\%\times 250=50](https://tex.z-dn.net/?f=x%5C%25%5Ctimes%20250%3D50)
Notice that a percentage can also be written as that number over 100.
![\frac{x}{100}\times250=50](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B100%7D%5Ctimes250%3D50)
![\frac{250x}{100}=50](https://tex.z-dn.net/?f=%5Cfrac%7B250x%7D%7B100%7D%3D50)
Reduce the fraction (250 and 100 have a common factor of 10)
![\frac{25x}{10}=50](https://tex.z-dn.net/?f=%5Cfrac%7B25x%7D%7B10%7D%3D50)
Reduce the fraction again (25 and 10 have a common factor of 5)
![\frac{5x}{2}=50](https://tex.z-dn.net/?f=%5Cfrac%7B5x%7D%7B2%7D%3D50)
Multiply both sides by two
![5x=100](https://tex.z-dn.net/?f=5x%3D100)
Divide both sides by 5
![x=20](https://tex.z-dn.net/?f=x%3D20)
Therefore the price of the television was reduced by 20%.
The answer would be 7.5, since 6/9=2/3 and 5/7.5=2/3, then the sides are equal ratios.