5. Write a system of equations and solve using substitution or elimination.
Adult tickets to the playoff basketball game cost $9
each and student tickets cost $5 each. If tickets for a
group of 23 people costs a total of $143, how many
adults and how many students were in the group?
(Show step by step)

Idk

Step-by-step explanation:

Haisbgusbsjsosnbsvskd vzjzj island / JSON

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm