Represent even numbers as "2n" since each is a multiple of 2.
Represent odd numbers as "2n+1" since each is one more than an even.
-----------------
Your problem:
smaller # : 2n
larger #: 2n+2
-------------------
EQUATION:
2n+2 + 3(2n) = 234
8n = 232
n = 29
---------
smaller = 2*29 = 58
larger = 2n+2 = 60
The answer would be 51y+140
The distance between -2 and -1 1/2 is 1/2:
-2+1/2=-1 1/2
-1 1/2 =-1 1/2
I was trying to show my work but hope this could help you
15 / 40 = .375
total # total #
of girls of students
.375 = 37.5%
15/40 as a fraction ---> simplify ---> 3/8
