1)
Let:
N = Total people every week = 207
r = People which needs a ramp = 1:9 = 1/9
So:
[tex]N\cdot r=207\cdot\frac{1}{9}=23[/tex]
Answer: 23 people
2)
[tex]\begin{gathered} SA=b\cdot h+pw \\ _{\text{ }}where\colon \\ b=18ft \\ h=4ft \\ p=b+h+l \\ l=\sqrt[]{h^2+b^2} \\ l=\sqrt[]{340} \\ w=4.75ft \end{gathered}[/tex]
Therefore:
[tex]\begin{gathered} SA=72+192.09 \\ SA=264.09ft^2 \end{gathered}[/tex]
3)
The percentage of the people that don't need the ramp will be given by:
[tex]1-r=1-\frac{1}{9}=\frac{8}{9}\approx0.89[/tex]
Answer: Approximately 89%
4)
[tex]\begin{gathered} h=\sqrt[]{(\sqrt[]{340})^2-9^2} \\ h=\sqrt[]{259} \\ h\approx16.09ft \end{gathered}[/tex]
5)
[tex]\begin{gathered} h=\sqrt[]{(\sqrt[]{340})^2-6^2} \\ h=\sqrt[]{340} \\ h\approx17.44ft \end{gathered}[/tex]
