X+5/5=X+9/7
-X. -X
5/5=9/7
there is no solution
Answer:
(5 , 7)
Step-by-step explanation:
let a = the number of adult tickets
let c = the number of children tickets
then we have to solve the following system
a + c = 12
14.5a + 9c = 135.5
we proceed by Substitution:
c = 12 - a
14.5a + 9c = 135.5
After some calculations we find
a=5 and c=7
The IQR or interquartile range is the difference between Q1 and Q3, also know as the upper and lower quartiles.
The second choice my dude
