Respuesta :
Answer:
900-270 = 630
630/900 = .7
.7 x 100 = 70 %
Step-by-step explanation:
we know a total of 900 went on the bus trip, that's the 100% of folks going, we also know that 270 of them were senior citizens.
if 900 is the 100%, what's 270 off of it in percentage?
[tex]\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 900&100\\ 270&x \end{array}\implies \cfrac{900}{270}=\cfrac{100}{x}\implies \cfrac{10}{3}=\cfrac{100}{x}\implies 10x=300 \\\\\\ x = \cfrac{300}{10}\implies x = 30[/tex]
