People in building ---- x (men, women and children)
children --- y
men + women + children = x
(3/7)x + (5/8)(4/7)x + y = x
3x/7 + 5x/14 + y = x
times 14
6x + 5x + 14y = 14x
14y = 3x
y + 220 =x
sub into the other one
14y = 3(y+220)
11y = 660
y = 60
then 14(60) = 3x ---> x = 280
So we have 280 people in the building.
check: 3/7 of 280 are men = 120
leaving 160 women and children
5/8 of these ot 100 are women
so we have 120 men, 100 women and 60 children!
hope this is right! have a great. day
I suspect you mean
1/8 sin(4<em>t </em>) = 1/2 (cos³(<em>t</em> ) sin(<em>t</em> ) - sin³(<em>t</em> ) cos(<em>t</em> ))
On the right side, pull out a factor of cos(<em>t</em> ) sin(<em>t</em> ):
1/2 (cos³(<em>t</em> ) sin(<em>t</em> ) - sin³(<em>t</em> ) cos(<em>t</em> )) = 1/2 cos(<em>t</em> ) sin(<em>t</em> ) (cos²(<em>t</em> ) - sin²(<em>t</em> ))
Recall the double angle identities for sin and cos :
sin(2<em>t</em> ) = 2 sin(<em>t</em> ) cos(<em>t</em> )
cos(2<em>t</em> ) = cos²(<em>t</em> ) - sin²(<em>t</em> )
Then
… = 1/4 (2 cos(<em>t</em> ) sin(<em>t</em> )) (cos²(<em>t</em> ) - sin²(<em>t</em> ))
… = 1/4 sin(2<em>t</em> ) cos(2<em>t</em> )
… = 1/8 (2 sin(2<em>t</em> ) cos(2<em>t</em> ))
… = 1/8 sin(4<em>t</em> )
Please send the information
Please help us get to my place for the new
Please it back please send him to send your information and let him do
O I don’t know how to open it .
Just need point sorry I hate school
Answer:
w=3
Step-by-step explanation:
Answer:
see attached picture shown