Answer:
Either :
1/2 10x+1/2 20y+1/2 10z
or
5x+10y+5z
Step-by-step explanation:
You're just multiplying everything by 1/2
Answer:
116%
Step-by-step explanation:
Cost Price (C. P.) = $500
Selling Price (S. P.) = $1080
Profit = SP - CP = $1080 - $500 = $580
Profit percent

The ratio of 3/20 is 3:20
Answer:
3m=9np
Step-by-step explanation:
3m-2-5np
+4 +4
3m=9np
9-2=?
-2
x-7