Answer:
x represents Annette speed in miles per minute. Hence, option b) is correct.
Step-by-step explanation:
Given that Annette rode her bike 6.8 miles at a constant rate for 90 minutes. Also to find how fast she traveled, she solved the equation [tex]6.8=x\times 90[/tex]. Now, we have to tell here what x represents.
As, [tex]Speed=\frac{Distance}{Time}[/tex]
Let speed of bike is x miles/min and given distance is 6.8 miles and at a constant rate for 90 minutes.
∴ [tex]x=\frac{6.8}{90}[/tex]
⇒ [tex]6.8=x\times 90[/tex]
which is the same equation as given.
Here x represents Annette speed in miles per minute. Hence, option b) is correct.
