Ruby and Angie ate 8/15 of the pizza all together
Answer: 2.7d + 24.3
Step-by-step explanation: Easy
Answer:
The value is a statistic, since it is from a sample.
Step-by-step explanation:
If the value is from a population, it is a parameter.
Otherwise, if the value is from a sample, it is a statistic.
In this question:
In a random sample of U.S. households, it was found that 72% have high-speed Internet.
The value is from a sample, so it is a statistic.
Answer: $450
Step-by-step explanation:
We can form an equation representing the problem. The question is essentially asking 60% of what is equal to $270. If we define that what as a variable 'x', we get the following:
![\frac{60}{100} *x=270](https://tex.z-dn.net/?f=%5Cfrac%7B60%7D%7B100%7D%20%2Ax%3D270)
![\frac{60x}{100} =270](https://tex.z-dn.net/?f=%5Cfrac%7B60x%7D%7B100%7D%20%3D270)
Multiply both sides by 100:
![\frac{60x}{100} *100=270*100](https://tex.z-dn.net/?f=%5Cfrac%7B60x%7D%7B100%7D%20%2A100%3D270%2A100)
![60x=27,000](https://tex.z-dn.net/?f=60x%3D27%2C000)
Divide both sides by 60 to solve for the value of 'x':
![x=\frac{27,000}{60} =450](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B27%2C000%7D%7B60%7D%20%3D450)
Answer is 450 bucks
We can check this answer by taking 60% of $450. In principal, this should return the discount of $270.
![\frac{60}{100} *450=270](https://tex.z-dn.net/?f=%5Cfrac%7B60%7D%7B100%7D%20%2A450%3D270)
Yup, it checks out