Question

the ratio of the number of adults to the students at the prom has to be 1:10 last year there were 477 more students than adults at the prom. if the school is expecting the same attendance this year , how many adults have to attend prom ?

Answer 1

`x-\ number\ of\ adults\\\\ (x+477)-\ number\ of\ students\\\\ Ratio:\\ (adults)/(students)=(1)/(10)\\ (x)/(x+477)=(1)/(10)\\ 10x=x+477\\ 10x-x=477\\9x=477\ \ \ |:9\\x=53.\\\\There\ will\ be\ 53\ adults\ at\ the\ prom.`