Annette rode her bike 6.8 miles at a constant rate for 90 minutes. to find how fast she traveled, she solved the equation 6.8= x⋅90. what does x represent?
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)the number of miles she has traveled so far

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 . Now, we have to tell here what x represents.

As,

Let speed of bike is x miles/min and given distance is 6.8 miles and at a constant rate for 90 minutes.

∴

⇒  

which is the same equation as given.

Here x represents Annette speed in miles per minute. Hence, option b) is correct.

associative property hopes this ! : )

step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.