246-79-104= 63
63 People came to swim on the 3rd day
Answer:
I'm going to also give you how to get the answer... not just the answer.. you will need to know this for a test :/ so learn it :P
Step-by-step explanation:
Sin(30)=12
to remember what Sin and Cos at those speacial angles in degrees are.. just use this Sin(degrees)
Sin(0) = 0/2 =0
Sin(30)=
/2 = 1/2
Sing(45) =
/2 =
/2
Sin(60)=
/2 =
/2
Sin(90)=
/2 = 1
Cos is exactly the same but counts backwards from 90°
Cos(90) = 0/2 =0
Cos(60) =
/2 = 1/2
Cos(45) =
/2 =
/2
Cos(30) =
/2 =
/2
Cos(0) =
/2 = 1
note that the numerators just count from 0,1,2,3,4 , see? you can remember sin and cos now :) since you can count to 4 :P
Sin(30) =12
1/2 =12 while that statement makes no sense.... obviously 1/2 isn't equal to 12 but.. what's being said is that the angle of 30° gives you a side that is 12 units long.
so looking at what I wrote above.. which angle in degrees matches Sin when you look at Cos?
Sin(30)= 1/2 and Cos(60) also = 1/2 huh
sooo β = 60 °
got it? :/
whenever we have an amount to be divided in ratios, we simply divide the total amount by the sum of those ratios and then distribute accordingly. In this case, let's divide 77.40 by (1+3+5) and then distribute accordingly to each chap.
![\bf \stackrel{Paul}{1}~~:~~\stackrel{Colin}{3}~~:~~\stackrel{Brian}{5}~\hfill \cfrac{77.40}{1+3+5}\implies 8.6 \\\\\\ \stackrel{Paul}{1\cdot 8.6}~~:~~\stackrel{Colin}{3\cdot 8.6}~~:~~\stackrel{Brian}{5\cdot 8.6}\qquad \implies \qquad \stackrel{Paul}{8.6}~~:~~\stackrel{Colin}{25.8}~~:~~\stackrel{Brian}{43} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \stackrel{\textit{Brian get this much more than Paul}}{43-8.6\implies 34.4}~\hfill](https://tex.z-dn.net/?f=%5Cbf%20%5Cstackrel%7BPaul%7D%7B1%7D~~%3A~~%5Cstackrel%7BColin%7D%7B3%7D~~%3A~~%5Cstackrel%7BBrian%7D%7B5%7D~%5Chfill%20%5Ccfrac%7B77.40%7D%7B1%2B3%2B5%7D%5Cimplies%208.6%20%5C%5C%5C%5C%5C%5C%20%5Cstackrel%7BPaul%7D%7B1%5Ccdot%208.6%7D~~%3A~~%5Cstackrel%7BColin%7D%7B3%5Ccdot%208.6%7D~~%3A~~%5Cstackrel%7BBrian%7D%7B5%5Ccdot%208.6%7D%5Cqquad%20%5Cimplies%20%5Cqquad%20%5Cstackrel%7BPaul%7D%7B8.6%7D~~%3A~~%5Cstackrel%7BColin%7D%7B25.8%7D~~%3A~~%5Cstackrel%7BBrian%7D%7B43%7D%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill%5C%5C%5C%5C%20~%5Chfill%20%5Cstackrel%7B%5Ctextit%7BBrian%20get%20this%20much%20more%20than%20Paul%7D%7D%7B43-8.6%5Cimplies%2034.4%7D~%5Chfill)