Question

440 adults and students attended the Drumond HighSchool orchestra concert. Forty more adults thanstudents attended. How many of each went to theconcert.Oa + 40 = 440s= 440Oa+s= 440s= a + 40Oa+s= 440a=s+ 40Oa + s = 440a = 40s

Answer 1

we have

adults = a = 40 + s

studentes = s

then:

`\begin{gathered} a+s=440 \\ a=s+40 \end{gathered}`

solve:

`\begin{gathered} s+40+s=440 \\ 2s+40=440 \\ 2s+40-40=440-40 \\ 2s=400 \\ (2s)/(2)=(400)/(2) \\ s=200 \end{gathered}`

then:

`a=s+40=200+40=240`

answer:

adults = 240

students = 200