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Question 8(Multiple Choice Worth 1 points)
(01.03 MC)
Shane biked 1 mile less than three times the number of miles Lissette biked. Shane biked a total of 7 miles. Write an equation to
determine how many miles Lissette biked.

Respuesta :

calculista

Answer:

Lissette biked [tex]2\frac{2}{3}\ miles[/tex]

Step-by-step explanation:

Let

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

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

we know that

[tex]x=3y-1[/tex] -----> equation A

[tex]x=7[/tex] ----> equation B

Equate equation A and equation B and solve for y

[tex]3y-1=7\\ 3y=7+1\\ 3y=8\\ y=\frac{8}{3}\ miles[/tex]

Convert to mixed number

[tex]\frac{8}{3}\ miles=\frac{6}{3}+\frac{2}{3}=2\frac{2}{3}\ miles[/tex]

gisellegendelman

Answer:

2 2/3

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