Let x be white marbles, y be yellow marbles
x+y=54…(1)
x=3y - 6 …(2)
put (2) into (1)
(3y - 6) + y = 54
4y = 60
y=15
put y=15 into (1)
x + 15=54
x=39
so y=15 x=39
Answer:
2x^2+9x-5
Step-by-step explanation:
You mean 60%of 5 1/2? that makes more sense...
i would do it like this:

(60% is the same as

(so that there is no confusion, i've put it into an improper fraction
now we can multiply:





which is 3.3.
so 60% of 5 and a half is 3.3.
Answer:
m= 67.5 and n=56.25
Step-by-step explanation:
180-15=165
165/2= 82.5
90-15= 75
75+75= 150
180-150=30
30+82.5= 112.5
180- 112.5= 67.5
m= 67.5
180-67.5= 112.5
112.5/2= 56.25
n= 56.25