Annete completes a 6.8
-mile bike route in 90
minutes. She rides her bike at a constant speed for the entire route. To find how fast she traveled, she solves the equation 6.8=x(90)
. What does x
represent?
CLEAR CHECK
a The total distance after x
minutes
B Her speed in miles per minute
C The amount of time it takes to travel 6.8
miles
d Number of miles she has traveled so far
C The amount of time it takes to travel 6.8 miles
C The amount of time it takes to travel 6.8 miles
To find out what x represents in the equation 6.8 = x(90), we need to understand the equation itself.
In this equation, 6.8 represents the total distance Annette completed, which is the 6.8-mile bike route. The number 90 represents the time it took her to complete the route, which is 90 minutes.
Now, let's look at the equation more closely. We have 6.8 on one side of the equation and x(90) on the other side. This means that x represents a value that, when multiplied by 90, will give us 6.8.
In other words, x represents Annette's speed in miles per minute. To find her speed, we divide the total distance (6.8 miles) by the time taken (90 minutes), which gives us Annette's speed in miles per minute.
Therefore, the correct answer is option B: Her speed in miles per minute.