Answer:
you multiply the numbers lol
Step-by-step explanation:
A=s+30
8a+4s=840
8(s+30)+4s=840
12s+240=840
12s=600
s=50
a=50+30=80
Check:
80(8)+50(4)=640+200=840 CHECKS.
80 Adults and 50 Students.
197 in^2
Just find the area of each face in the figure.
These are the formulas I used:
Formula for area of trapzoid:
(a + b/ 2) x height
Formula for area of rectangle:
length x width
Formula for area of square:
Length x width
Hope this helps!
I will send a teacher to this question