if the carpenter can do the whole job in 4 hours, that means in 1 hour, it has only done 1/4 of the whole thing.
if his assistant can do the job in 6 hours, that means, in 1 hour, he has done only 1/6 of the whole job.
let's say if both of them work together, they can do the job in "t" hours, so in 1 hour alone, the carpenter has done 1/4 of it, and the assistant has done 1/6 of it, for a total of 1/t of the job.
![\bf \stackrel{\textit{carpenter's rate}}{\cfrac{1}{4}}+\stackrel{\textit{assistant's rate}}{\cfrac{1}{6}}~~=~~\stackrel{\textit{total done}}{\cfrac{1}{t}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{3+2}{12}=\cfrac{1}{t}\implies \cfrac{5}{12}=\cfrac{1}{t}\implies 5t=12\implies t=\cfrac{12}{5}\implies \stackrel{\textit{2 hours and 24 minutes}}{t=2\frac{2}{5}}](https://tex.z-dn.net/?f=%5Cbf%20%5Cstackrel%7B%5Ctextit%7Bcarpenter%27s%20rate%7D%7D%7B%5Ccfrac%7B1%7D%7B4%7D%7D%2B%5Cstackrel%7B%5Ctextit%7Bassistant%27s%20rate%7D%7D%7B%5Ccfrac%7B1%7D%7B6%7D%7D~~%3D~~%5Cstackrel%7B%5Ctextit%7Btotal%20done%7D%7D%7B%5Ccfrac%7B1%7D%7Bt%7D%7D%0A%5C%5C%5C%5C%5B-0.35em%5D%0A%5Crule%7B34em%7D%7B0.25pt%7D%5C%5C%5C%5C%0A%5Ccfrac%7B3%2B2%7D%7B12%7D%3D%5Ccfrac%7B1%7D%7Bt%7D%5Cimplies%20%5Ccfrac%7B5%7D%7B12%7D%3D%5Ccfrac%7B1%7D%7Bt%7D%5Cimplies%205t%3D12%5Cimplies%20t%3D%5Ccfrac%7B12%7D%7B5%7D%5Cimplies%20%5Cstackrel%7B%5Ctextit%7B2%20hours%20and%2024%20minutes%7D%7D%7Bt%3D2%5Cfrac%7B2%7D%7B5%7D%7D)
Answer:
C , T , I , O , S , H , K
Step-by-step explanation:
A 1-fold reflectional symmety means that if the letter is folded in the middle (either horizontally or vertically) then both sides will be identical and match up perfectly. From the words provided the letters that have this symmetry are the following.
From "RAINY" = I
From "ACTION" = C , T , I , O
From "SHARK" = S , H , K
Each of these letters can be folded once and have both parts identical to one another.
Answer: F= 29
Explanation: first use distributive property and multiplied by three with the parentheses. And then multiply to by what you just solved. Remember to keep writing everything that we haven’t used yet. Then divide both the left side and the 6X by X. Then subtract 30 by 7. And add six. I hope this helped
Please add a picture, otherwise I cannot help you.
