x - number of adult tickets
y - number of student tickets
{10.5x + 8.5y = 149.5
{x + y = 15
{x = 15 - y
{10.5(15 - y) + 8.5y = 149.5
{x = 15 - y
{157.5 - 10.5y + 8.5y = 149.5
{x = 15 - y
{-2y = -8
{y = 4
{x = 11
They purchased 11 adult tickets.
Answer:
n= can equal all of those.
Step-by-step explanation:
$76.50 - $8.50 = 9 weeks
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Answer:
m = 0
slope = 0
Step-by-step explanation:
