Answer: The original price of brownie was $2.1 each.
Step-by-step explanation:
since we have given that
Let the original price will be x
Number of brownie purchased = 8
According to question , each brownie costs $0.20 less than the original price.
So, it becomes
![8\times (x-0.20)=\$15.20\\\\8x-1.6=15.20\\\\8x=15.20+1.60\\\\8x=16.8\\\\x=\frac{16.8}{8}\\\\x=\$2.1](https://tex.z-dn.net/?f=8%5Ctimes%20%28x-0.20%29%3D%5C%2415.20%5C%5C%5C%5C8x-1.6%3D15.20%5C%5C%5C%5C8x%3D15.20%2B1.60%5C%5C%5C%5C8x%3D16.8%5C%5C%5C%5Cx%3D%5Cfrac%7B16.8%7D%7B8%7D%5C%5C%5C%5Cx%3D%5C%242.1)
Hence, the original price of brownie was $2.1 each.
This is an example of a systematic sample.
Dr. Jon developed a system in order to get a random sample. His plan was to survey the 4th student that entered his classroom.
Answer:
Step-by-step explanation:
Incomplete presentation of question. Did you want to factor out the greatest common factor (which is 2), obtaining 2(4y - 3)? Or something else? Also: please note that if you use the left parenthesis ) , you MUST also use the right parenthesis ( .
The x-intercept is defined to be the value of x when y is zero. Based on the graph of the function: f(x) = (x-4)(x+4), the x-intercepts are located at (-4, 0) and (4,0). At these points the graph intersects the x-axis. The midpoint of the x-intercepts is located at the middle of the two points. In this case, the graph shows that it is at the origin or at (0,0).
Answer:
56 5/8
Step-by-step explanation:
453/8