I hope this helps, I tried to make my handwriting as easy to read and to explain as much, I just used a calculator to compute all those values to find AC
Answer:
The number of Television at the beginning was 90
The number of video cassette recorders at the beginning was 89
Step-by-step explanation:
Selling Price of 1 Television =$360.
Selling Price of 1 video cassette recorders for $270.
Let the number of Television at the beginning=x
Let the number of video cassette recorders at the beginning =y
Opening Stock =$56,430.
Therefore:
It sells three quarters of the televisions and one third of the video cassette recorders for a total of $32,310.
![\frac{3}{4}(360)x+\frac{1}{3}(270)y= \$32,310](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D%28360%29x%2B%5Cfrac%7B1%7D%7B3%7D%28270%29y%3D%20%5C%2432%2C310)
270x+90y=32310
We then solve the two equations to obtain x and y.
- 360x+270y=$56,430. (Multiply by 270)
- 270x+90y=32310 (Multiply by 360)
97200x+72900y=15236100
97200x+32400y=11631600
Subtract
40500y=3604500
y=89
Substitute y=89 into 270x+90y=32310 to obtain x
270x+90(89)=32310
270x=32310-8010=24300
x=90
Therefore:
The number of Television at the beginning was 90
The number of video cassette recorders at the beginning was 89
Answer:
x = ±2√7
Step-by-step explanation:
Take the square root and simplify.
![x^2=28\\\\x=\pm\sqrt{28}=\pm\sqrt{(2^2)(7)}\\\\\boxed{x=\pm2\sqrt{7}}](https://tex.z-dn.net/?f=x%5E2%3D28%5C%5C%5C%5Cx%3D%5Cpm%5Csqrt%7B28%7D%3D%5Cpm%5Csqrt%7B%282%5E2%29%287%29%7D%5C%5C%5C%5C%5Cboxed%7Bx%3D%5Cpm2%5Csqrt%7B7%7D%7D)
Sorry we need a picture to help you