Answer:
200+100m
Step-by-step explanation:
Simplified by collecting like terms
Answer:7+7
Step-by-step explanation:
i didn't know it was st.patrick's day
Answer: Number of hours they all will take is ![\frac{12}{7}=1\frac{5}{7}\ hours](https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7B7%7D%3D1%5Cfrac%7B5%7D%7B7%7D%5C%20hours)
Step-by-step explanation:
Since we have given that
Number of hours Walter and Bill takes to do the job = 4 hours
Number of hours Tom alone takes to do the job = 3 hours
We need to find the number of hours takes them together to decorate the room.
Work done by Walter and Bill = ![\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D)
Work done by Tome = ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
total work done by three is given by
![\frac{1}{4}+\frac{1}{3}\\\\=\frac{3+4}{12}\\\\=\frac{7}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%2B%5Cfrac%7B1%7D%7B3%7D%5C%5C%5C%5C%3D%5Cfrac%7B3%2B4%7D%7B12%7D%5C%5C%5C%5C%3D%5Cfrac%7B7%7D%7B12%7D)
Hence, Number of hours they all will take is ![\frac{12}{7}=1\frac{5}{7}\ hours](https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7B7%7D%3D1%5Cfrac%7B5%7D%7B7%7D%5C%20hours)
You didn't write f(x)
how we should find f(4)?