Question

Question 8(Multiple Choice Worth 1 points)

Answer 1

Answer:

Lissette biked $2\frac{2}{3}\ miles$

Step-by-step explanation:

Let

x -----> the number of miles Shane biked

y -----> the number of miles Lissette biked

we know that

$x=3y-1$ -----> equation A

$x=7$ ----> equation B

Equate equation A and equation B and solve for y

$3y-1=7\\ 3y=7+1\\ 3y=8\\ y=\frac{8}{3}\ miles$

Convert to mixed number

$\frac{8}{3}\ miles=\frac{6}{3}+\frac{2}{3}=2\frac{2}{3}\ miles$