Answer:
it's 7500
Step-by-step explanation:
20% of 7500 is 1500. General tip, commission is usually 25%
The surface area of the prism is the sum of surface areas of 3 rectangles and 2 triangles.
The surface area of rectangles are
.
The sum is
.
The are of each triangle is
.
The sum of areas of 2 triangles is
.
The surface area of the prism is
.
Hi,
The answer is c. The sample is biased.
This is because the sample is taken on a single state, an Rebecca reports a statistic about the nation. Her data contains information only of her state. If she lives in a very cold state, there is probably more homeowners using electric heat than in a hot state.
Answer:
![- 7 + \frac{2}{3}n = 13 : n = 30](https://tex.z-dn.net/?f=-%207%20%2B%20%5Cfrac%7B2%7D%7B3%7Dn%20%3D%2013%20%3A%20n%20%3D%2030)
Step-by-step explanation:
![-7+\frac{2}{3}n=13](https://tex.z-dn.net/?f=-7%2B%5Cfrac%7B2%7D%7B3%7Dn%3D13)
Add
to both sides:
![-7+\frac{2}{3}n+7=13+7](https://tex.z-dn.net/?f=-7%2B%5Cfrac%7B2%7D%7B3%7Dn%2B7%3D13%2B7)
Simplify:
![\frac{2}{3}n=20](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7Dn%3D20)
Multiply both sides by
:
![3 * \frac{2}{3}n=20 * 3](https://tex.z-dn.net/?f=3%20%2A%20%5Cfrac%7B2%7D%7B3%7Dn%3D20%20%2A%203)
Simplify:
![2n=60](https://tex.z-dn.net/?f=2n%3D60)
Divide both sides by
:
![\frac{2n}{2}=\frac{60}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2n%7D%7B2%7D%3D%5Cfrac%7B60%7D%7B2%7D)
Simplify:
![n = 30](https://tex.z-dn.net/?f=n%20%3D%2030)
Hope I helped. If so, may I get brainliest and a thanks?
Thank you. Have a good day! =)