Answer:
125 adults
175 children
Step-by-step explanation:
3900=8c+20a
300=c+a
c=300-a
substitute
3900=8(300-a)+20a
reduce
3900=2400-8a+20a
1500=12a
a=125 adults
substitute for a
c=300-a
c=300-125
c=175 children
Answer:
n=5
Step-by-step explanation: happy to hlp
Answer:
-
Step-by-step explanation:
A. more homework better scores
b. about 60 score
c. standard score