Answer:
43 miles per hour
Step-by-step explanation:
We know that in Cherokee County, the speed tickets amounts are calculated on the basis of $17 for each mile above the speed limit.
Since Kirk was fined $221, we can easily calculate the excess speed he was caught at by dividing $221 by $17/mile, which gives us 13 miles.
Since he was caught in a zone where the posted speed limit was 30, and that he exceeded it by 13 miles per hour... we know he was going at 43 miles per hour.
Given:
The equation is
![-50=\dfrac{x}{3}+20](https://tex.z-dn.net/?f=-50%3D%5Cdfrac%7Bx%7D%7B3%7D%2B20)
To find:
The solution of the given equation.
Solution:
We have,
![-50=\dfrac{x}{3}+20](https://tex.z-dn.net/?f=-50%3D%5Cdfrac%7Bx%7D%7B3%7D%2B20)
Subtracting both sides by 20, we get
![-50-20=\dfrac{x}{3}+20-20](https://tex.z-dn.net/?f=-50-20%3D%5Cdfrac%7Bx%7D%7B3%7D%2B20-20)
![-70=\dfrac{x}{3}](https://tex.z-dn.net/?f=-70%3D%5Cdfrac%7Bx%7D%7B3%7D)
Multiply both sides by 3.
![-210=x](https://tex.z-dn.net/?f=-210%3Dx)
Therefore, the solution of the given equation is
.
Answer:
-3 3/4
Step-by-step explanation:
First, you make a table.
<u>x | y</u>
3 | 8
7 | -7
Since in the table it shows that it goes up 4 x's for every -15 y's, that means for every 1 x it goes down -3.75 y's, so -3.75 (-3 3/4) is the slope.
Answer:
200
Step-by-step explanation:
Put 5 times 10^4 in your calculator and you get 50,000. Then put 2.5 times 10^2 in your calculator and you get 250. Lastly divide 50,000 and 250 and you get 200.