Answer:
-161
Step-by-step explanation:
First of all, x>y
x-y=40
and
x+y=66
add them equations together to eliminate
x-y=40
<u>x+y=66 +</u>
2x+0y=106
2x=106
divide by 2
x=53
sub back
x-y=40
53-y=40
minus 53 both sides
-y=-13
y=13
the numbers are 53 and 13
22 since it occurs the most.
I don't really know how to explain it to you but what I can tell you is that in 1 centigram there are 10 milligrams.
