Get detailed and accurate responses to your questions with IDNLearn.com. Discover prompt and accurate answers from our community of experienced professionals.

13) The school that Natalie goes to is selling tickets to a play. On the first day of ticket sales the
school sold 13 adult tickets (x) and 11 student tickets (y) for a total of $129. The school took in
$66 on the second day by selling 13 adult tickets and 2 student tickets. What is the price each of
one adult ticket and one student ticket?
pls help bro


Sagot :

Answer:

Adult ticket = $4

Student ticket = $7

Step-by-step explanation:

• On first day:

[tex]{ \rm{13x + 11y = 129 - - - \{eqn(a) \}}}[/tex]

• On second day:

[tex]{ \rm{13x + 2y = 66 - - - \{eqn(b) \}}}[/tex]

• Solving simultaneously;

Equation (a) - Equation (b):

[tex] - { \underline{ \rm{ \binom{13x + 11y = 129}{13x + 2y = 66} }}} \\ { \rm{00x + 9y = 63}} \\ \\ { \rm{y = \frac{63}{9} }} \\ \\ { \boxed{ \rm{ \: y = 7 \: }}} \\ \\ { \rm{13x + 2(7) = 66}} \\ \\ { \rm{13x + 14 = 66}} \\ \\ { \rm{13x = 52}} \\ \\ { \boxed{ \rm{x = 4}}}[/tex]