Answer:
[tex]PN=64\ units[/tex]
Step-by-step explanation:
The complete question is
Given the quadrilateral is a rectangle, if LO = 15x+19 and QN = 10x+2 find PN
see the attached figure to better understand the problem
we know that
The diagonals of a rectangle are congruent and bisect each other
so
[tex]QN=\frac{1}{2}LO[/tex]
substitute the given values
[tex]10x+2=\frac{1}{2}(15x+19)[/tex]
solve for x
[tex]20x+4=15x+19\\20x-15x=19-4\\5x=15\\x=3[/tex]
Find the length of PN
Remember that
[tex]PN=LO[/tex] ----> diagonals of rectangle are congruent
[tex]LO=15x+19[/tex]
substitute the value of x
[tex]LO=15(3)+19=64\ units[/tex]
therefore
[tex]PN=64\ units[/tex]