Answer:
![12+c-2d](https://tex.z-dn.net/?f=12%2Bc-2d)
Step-by-step explanation:
<u><em>The correct expression of the problem is</em></u>
![4\left(3 + \dfrac14c - \dfrac12d\right)](https://tex.z-dn.net/?f=4%5Cleft%283%20%2B%20%5Cdfrac14c%20-%20%5Cdfrac12d%5Cright%29)
Applying the distributive property
![4\left(3 + \dfrac14c - \dfrac12d\right)=(4*3)+(4*\dfrac{1}{4} c)-(4*\dfrac{1}{2} d)=(12)+(c)-(2d)](https://tex.z-dn.net/?f=4%5Cleft%283%20%2B%20%5Cdfrac14c%20-%20%5Cdfrac12d%5Cright%29%3D%284%2A3%29%2B%284%2A%5Cdfrac%7B1%7D%7B4%7D%20c%29-%284%2A%5Cdfrac%7B1%7D%7B2%7D%20d%29%3D%2812%29%2B%28c%29-%282d%29)
therefore
The equivalent expression is equal to
![12+c-2d](https://tex.z-dn.net/?f=12%2Bc-2d)
Answer:
756 is a reasonable estimate because the proportion of the sample whose favorite pizza is pepperoni is about 27 %
Step-by-step explanation:
given data
random sample = 150 people
favorite pepperoni pizza = 40
total of residents = 2800
number of residents favorite pizza = 750
solution
we get here first Proportion favorite pizza that is
Proportion =
Proportion = 0.27 = 27%
and now we get 27% of total of residents that is = 27% × 2800
= 756
so we can say 756 is a reasonable estimate because here proportion of an sample whose favorite pizza are pepperoni pizza about 27 %