Answer:
4
Step-by-step explanation:
Need to know #, and solve :
# is the same as
#you need the same denominator to be able to add or subtract fractions
# is the same as
# is the same as a*d = b*c
6 ( 2*s - 4) = 3 ( s+4)
# distribute multiplication over addition and subtraction
12s-24 = 3s+12
#isolate like terms
12s-3s = 12+24
#combine like terms
9s = 36
#divide both sides by 9
s= 4
Use Pythagoras 6 squared =36-(4x4) =20 square root of 20 then times that by two
Answer:
7
Step-by-step explanation:
Since the goal is to draw three marbles of the same colour, regardless of which colour that is, the worst possible scenario would be drawing two marbles of each color in the first six picks (2 red, 2 white and 2 blue). At this point, with the 7th pick, no matter what colour marble the student picks will form three of the same kind.
Therefore, the minimum number of marbles which students should take from the box to ensure that at least three of them are of the same colour is 7.
Answer:
Step-by-step explanation: