In general, 23 more than a number is written as
![x+23](https://tex.z-dn.net/?f=x%2B23)
In our case, x is 'twice a number'; thus,
![x=2*n=2n](https://tex.z-dn.net/?f=x%3D2%2An%3D2n)
Finally, the whole expression is
![2n+23](https://tex.z-dn.net/?f=2n%2B23)
<h2>The answer is 2n+23</h2>
Answer:
42+34+14=90
Step-by-step explanation:
42 people are male
34 people study biology
14 males study biology (thats both)
1) 100 * 40 = 4000 (cm²) the area of rectangle
2) 40 * 30 * 1/2 = 600 (cm²) the area of triangle
3) 4000 + 600 = 4600 (cm²)
Answer: 4600 cm²
Answer:
8
Step-by-step explanation:
Fill in the variable value and do the arithmetic.
![\dfrac{2^5}{2^2}=\dfrac{32}{4}=8](https://tex.z-dn.net/?f=%5Cdfrac%7B2%5E5%7D%7B2%5E2%7D%3D%5Cdfrac%7B32%7D%7B4%7D%3D8)
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Of course, the fraction can be simplified first:
![\dfrac{x^5}{x^2}=x^{5-2}=x^3\\\\2^3=8](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%5E5%7D%7Bx%5E2%7D%3Dx%5E%7B5-2%7D%3Dx%5E3%5C%5C%5C%5C2%5E3%3D8)