Question

the national civil rights museum in memphis, tenesse, admitted 321 adults and children and collected $1590. the price of admission $6 for an adult and $4 for a child. how many adults and how many children were admitted to the museum that day?

Answer 1

#children = $\frac{321 * 6 - 1590}{6 - 4}$

#children = $\frac{1926 - 1590}{2}$

#children = $\frac{336}{2}$ = 168


#adults = $\frac{321 * 4 - 1590}{4 - 6}$

#adults = $\frac{1284 - 1590}{-2}$

#adults = $\frac{-306}{-2}$ = 153