Scale factor = 0.5 / 25 = 0.02 inches per foot
on scale drawing of the park the dimensuons will be 600 * 0.02 by 1000*0.02
= 12 inches by 20 inches
Equals the third side length
Answer:
-1/60
Step-by-step explanation:

= 
=
(find LCM of demoninators)
= 
= 
= -1/60
Let,
the no. of adults be "x"
then, the no. of childern = total people - total adults
= (30 - x)
Now,
According to the quesiton,
2 (30 - x) + 5x = 87
60 - 2x + 5x = 87
60 + 3x = 87
3x = 87 - 60
3x = 27
x = 27 / 3
x = 9
So, there were 9 adults in the group