I think it should be 6000 more! If not im so sorry!! Have a nice day!!
First,you do,2/5+2/3,but since you will need a common denominator,you will find the least common denominator for 5 and 3.The LCD(Least Common Denominator) will be 15 since both 5 and 3 could go in 15.Now,the equation looks like this: 2/15+2/15 since whatever you do to the bottom numbers,you NEED to do to the top numbers:2 and 2.Now you will need to do,2x3,since 5x3=15 and the answer to 2x3=6 then you do 2x5,since 3x5=15 the answer is 10 now the equation looks like this:6/15+10/15 now you add them together,and the answer will be 16/15 and if you want the answer to be a mixed number,it would look like this: 1 1/15. Hope this helps!
Given:
Henry can type 3500 words in 70 minutes.
Colin can type 1500 in 30 minutes.
Brian can type 2200 words in 40 minutes.
To find:
The person who types at the fastest rate of words per minute.
Solution:
We know that,
![\text{Rate of words per minute}=\dfrac{\text{Number of words}}{\text{Number of minutes}}](https://tex.z-dn.net/?f=%5Ctext%7BRate%20of%20words%20per%20minute%7D%3D%5Cdfrac%7B%5Ctext%7BNumber%20of%20words%7D%7D%7B%5Ctext%7BNumber%20of%20minutes%7D%7D)
Using this formula, we get
![\text{Henry's rate of words per minute}=\dfrac{3500}{70}=50](https://tex.z-dn.net/?f=%5Ctext%7BHenry%27s%20rate%20of%20words%20per%20minute%7D%3D%5Cdfrac%7B3500%7D%7B70%7D%3D50)
![\text{Colin's rate of words per minute}=\dfrac{1500}{30}=50](https://tex.z-dn.net/?f=%5Ctext%7BColin%27s%20rate%20of%20words%20per%20minute%7D%3D%5Cdfrac%7B1500%7D%7B30%7D%3D50)
![\text{Brian's rate of words per minute}=\dfrac{2200}{40}=55](https://tex.z-dn.net/?f=%5Ctext%7BBrian%27s%20rate%20of%20words%20per%20minute%7D%3D%5Cdfrac%7B2200%7D%7B40%7D%3D55)
Since 55>50, therefore Brian's types at the fastest rate of words per minute.
Answer:
-3/2
Step-by-step explanation:
The rate of change is the same as slope