Answer:
<em>Rachel will earn $85 in 10 hours.</em>
Step-by-step explanation:
Rachel earned $34 in 4 hours at her job today.
Suppose, she will earn
dollar in 10 hours tomorrow.
So, <u>according to ratio of 'dollar' and 'hours'</u>, the equation will be.....
![\frac{34}{4}=\frac{x}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B34%7D%7B4%7D%3D%5Cfrac%7Bx%7D%7B10%7D)
After cross multiplying, we will get.....
![4x= 34*10\\ \\ 4x= 340\\ \\ x=\frac{340}{4}=85](https://tex.z-dn.net/?f=4x%3D%2034%2A10%5C%5C%20%5C%5C%204x%3D%20340%5C%5C%20%5C%5C%20x%3D%5Cfrac%7B340%7D%7B4%7D%3D85)
Thus, Rachel will earn $85 in 10 hours.
Answer:it is only (x,y) -> (3x, 3y)
Step-by-step explanation: I just took the test and got it right,, hope it helped :)
Im not quite triggered but U should go to mathantics.com or watch his videos to find it out :D
To find the acceleration of the bicycle rider, we are going to use the acceleration formula:
![a= \frac{v_{f}-v_{i}}{t}](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7Bv_%7Bf%7D-v_%7Bi%7D%7D%7Bt%7D%20)
where
![a](https://tex.z-dn.net/?f=a)
is the acceleration
![v_{i}](https://tex.z-dn.net/?f=v_%7Bi%7D)
is the initial speed
![v_{f}](https://tex.z-dn.net/?f=v_%7Bf%7D)
is the final speed
![t](https://tex.z-dn.net/?f=t)
is the time
We know from our problem that increases his speed from 5 m/s to 15 m/s in 10 seconds, so his initial speed is 5 m/s and his final speed is 15 m/s; therefore,
![v_{i}=5](https://tex.z-dn.net/?f=v_%7Bi%7D%3D5)
,
![v_{f}=15](https://tex.z-dn.net/?f=v_%7Bf%7D%3D15)
, and
![t=10](https://tex.z-dn.net/?f=t%3D10)
. Lets replace those values in our formula:
![a= \frac{v_{f}-v_{i}}{t}](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7Bv_%7Bf%7D-v_%7Bi%7D%7D%7Bt%7D%20)
![a= \frac{15-5}{10}](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7B15-5%7D%7B10%7D%20)
![a= \frac{10}{10}](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7B10%7D%7B10%7D%20)
We can conclude that the acceleration of the bicycle rider 1 m/s^2
I think you are supposed to divide the sum of the interior angles of the polygon (360 degrees) by the exterior angles of the polygon (72 degrees). When you do this: 360 / 72 = 5 sides.
This would be a pentagon.