Let the number be x:
3x-9 = 45
3x = 45+9
3x = 54
x = 18
21. The number subtracted doubles in each succession... 63 is 3 less than 66... 57 is 6 less than 63... 45 is 12 less than 57. So 21 is 24 less than 45.
.45
■31, 37,41,43
It is 45
45 is one of them
25 percent of 45 = 45*0.25 = 11.25 11.25 < (is less than) 45
21. The number subtracted doubles in each succession... 63 is 3 less than 66... 57 is 6 less than 63... 45 is 12 less than 57. So 21 is 24 less than 45.
44
.45
It is: (8*12)-45 = 51
No, any negative number will be less than 0.
It is: 42
■31, 37,41,43
It is 45
45 is one of them
5x + 45 = 10x - 100 x = 29
it's odd 9*5= 45 15*3= 45 its one less than 46