Answer:
Jada walked 
Elena walked 
Lin walked 
Step-by-step explanation:
Let
x----> total miles walked by Jada
y----> total miles walked by Elena
z----> total miles walked by Lin
we know that
-----> equation A
----->
------> equation B
------> equation C
Substitute equation C and equation B in equation A and solve for x




Find the value of y

Find the value of z

therefore
Jada walked 
Elena walked 
Lin walked 
Answer:
552
Step-by-step explanation:
The value of x is: Solve for x by simplifying both sides of the equation, then isolating the variable.
x=−9/4
Answer:
6
Step-by-step explanation:
answer is 6 sorry if it wrong
Answer: 500 dollars
You just plug in 100 to the x’s in the equation