Puala and kelly are comparing their ruining times. puala completed a 10-mile run in 65 minuets. kelly completed 10-kilometre run in 40 minuets. given that 8 kilometre are equal to 5 miles, whch girl has the greatest average speed?

If 8 km equals 5 miles then that means Paula ran 16 kilometers in 65 minutes.

And we already know that kelly  ran 10 kilometers in 40 minutes

do 40/10 which is 4 and 65/16 which is 4.062

Therefore Paula had the greatest average speed

2(b + 3c) → We first need to simplify this.

Simplify.

2b + 6c

1st Option : 

3(b + 2c)

Simplify.

3b + 6c

This is INCORRECT, as it is not equal to 2b + 6c.

2nd Option :

(b + 3c) + (b + 3c)

Simplify.

2b + 6c

This is CORRECT because 2b+6c = 2b+6c

(b + 3c) + (b + 3c)  → Answer

~Hope I helped!~