Answer:
Step-by-step explanation:
width= x
length= x+6
perimter = 2x+ 2(x+6)
36= 2x+ 2x+ 12
36= 4x + 12
36-12= 4x
4x= 24
x= 6
therefore width= 6cm
length= 6+6 = 12
7-4+<u>3x0</u>+1=<u>7-4</u>+0+1
=<u>3+0</u>+1
=<u>3+1
</u>=4<u>
</u>
Answer:
Step-by-step explanation:
<u>Top and bottom:</u>
<u>Front and back:</u>
<u>Left and right:</u>
<u>Total surface area:</u>
Answer:
3x^2+1.5x-9
Step-by-step explanation:
(f+g) (x)
=f(x)+g(x)
=x/2-3+3x^2+x-6
=3x^2+1.5x-9
218 Students
109 Adults
Let x = adults
Let 2x = students
Add together and set equal to the total number.