Even numbers on die: 2,4,6
odd numbers on die: 1,3,5
3+3=6 -> 6 numbers in total
3/6 chance because there are 3 even numbers. This would round to 1/2, so 1/2 a chance the die will roll an even number.
because we want to know how many time soothing is repeated
99 is a composite number. 99 = 1 x 99, 3 x 33, or 9 x 11 :)))
3(x-1)-2•(2x+1)=8(x-1)
3x-3-4x+2=8x-8
3x-3-4x+2-8x+8=0
-9x+7=0
-9x=-7
x= 7/9