Answer:
320
Step-by-step explanation:
go backwards, 75 + 45 = 120
120 * 5/3 = 200
200+40 = 240
240 *4/3 = 320
Answer:
1. x - 1
2. ![\sqrt{x^2-1}](https://tex.z-dn.net/?f=%5Csqrt%7Bx%5E2-1%7D)
Step-by-step explanation:
![f(g(x)) = \sqrt{x+1}^2 - 2\\ = x + 1 - 2\\= x - 1](https://tex.z-dn.net/?f=f%28g%28x%29%29%20%3D%20%5Csqrt%7Bx%2B1%7D%5E2%20-%202%5C%5C%20%3D%20x%20%2B%201%20-%202%5C%5C%3D%20x%20-%201)
![g(f(x)) =\sqrt{x^2-2+1}\\ = \sqrt{x^2-1}](https://tex.z-dn.net/?f=g%28f%28x%29%29%20%3D%5Csqrt%7Bx%5E2-2%2B1%7D%5C%5C%20%3D%20%5Csqrt%7Bx%5E2-1%7D)
4(y - 7) = 2y - 38
4y - 28 = 2y - 38
4y - 2y = -38 + 28
2y = -10
y = -5
What is percentage change?
By quantifying the difference between two numbers and expressing it as an increase or decrease, the Percentage Change Calculator (percent change calculator) may determine the percentage change.
The initial price
(100%) was decreased by 10%., then this reduced price is reduced more by 20% that becomes the final price
which is 72.
Calculate percentage change from
to
.
=![& \frac{\left(V_{2}-V_{1}\right)}{\left|V_{1}\right|} \times 100 \\](https://tex.z-dn.net/?f=%26%20%5Cfrac%7B%5Cleft%28V_%7B2%7D-V_%7B1%7D%5Cright%29%7D%7B%5Cleft%7CV_%7B1%7D%5Cright%7C%7D%20%5Ctimes%20100%20%5C%5C)
![=& \frac{(72-100)}{|100|} \times 100 \\](https://tex.z-dn.net/?f=%3D%26%20%5Cfrac%7B%2872-100%29%7D%7B%7C100%7C%7D%20%5Ctimes%20100%20%5C%5C)
![=& \frac{-28}{100} \times 100 \\](https://tex.z-dn.net/?f=%3D%26%20%5Cfrac%7B-28%7D%7B100%7D%20%5Ctimes%20100%20%5C%5C)
![=&-0.28 \times 100 \\](https://tex.z-dn.net/?f=%3D%26-0.28%20%5Ctimes%20100%20%5C%5C)
![=&-28 \% \text { change } \\](https://tex.z-dn.net/?f=%3D%26-28%20%5C%25%20%5Ctext%20%7B%20change%20%7D%20%5C%5C)
![=& 28 \% \text { decrease }](https://tex.z-dn.net/?f=%3D%26%2028%20%5C%25%20%5Ctext%20%7B%20decrease%20%7D)
To know more about percentage change visit:
brainly.com/question/7568722
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Answer:
225 adult tickets
Step-by-step explanation:
S: no. of students
A: no. of adults
S = A + 54
S + A = 504
A + A + 54 = 504
2A = 450
A = 225
S = 225 + 54
S = 279