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10 % + 30 % = 40 %
100% - 40% = 60%
60% are red
Multiply total shirts by 60%
80 x 0.60 = 48
48 shirts are red
I’m guessing that x is the angle on the right that isn’t shown?
Anyways if that’s the case then:
We know that the sum of all the angles of a triangle add up to 180 degrees.
In this triangle we know that one angle is 55 degrees and the other is 90 degrees, so to find the last angle we do the sum of all the angles and we remove the 2 angles:
180- (55+90)= 35 degrees.
x= 35 degrees
If you mean 3 more terms in the sequence they could be
64, 32, 16, 8 ...
If you mean any 3 terms then 4096 1024 and 256 qualify.
Answer:
it needs to be less dense than water and weight needs to be equal to buoyant force.
