Answer:
7 minutes
Step-by-step explanation:
average time = 6 minutes per mile
sum = average * count = 6 minutes / mile * 4 miles = 24 minutes
first + last mile = 5 + 5 = 10 minutes
first + second + third + last mile = sum = 24 minutes
second + third = sum - first - last = 24 - 5 - 5 = 24 - 10 = 14 minutes
average of 2 miles in the middle = sum / count = 14 minutes / 2 = 7 minutes
1 yard=36".
25 yeards = 25*36" = 900"
3 rolls = 3*900 = 2700"
Each piece must be 22" long, so the number of pieces
= 2700/22 = 122 pieces (2684") with 16" left over.
Answer:
does not factor
Step-by-step explanation:
prime
You make the denominators into common factors (the same numbers( and subtract them like that
Step-by-step explanation:
7x^×2-16x-15
14x^-16x-15