Maurice A. answered 09/20/19
What, Whys, and Hows of Accounting, Finance, Excel, and Power BI
$117x + $286y = $19,435
x+y= 91 passengers
y= 91-x
$117x + $286(91-x) = $19,435
$117x + $26026 - $286x = $19,435
$26026 -$19,435 = $286x - $117x
$6591 = $169x
39 = x
$117(39) + $286y = $19,435
$286y = 14,872
y = 52
39 people purchased the $117 regular coach seats.
52 people purchased the $286 sleeper car seats.