Li can walk 2 miles in 40 minutes. at that rate, how far can she walk in 30 minutes

Walks 2 miles in 40 mins
2/40 = x/30
30*2 = 60
60/40 = x
x = 1.5

She would walk 1.5 miles in 30 minutes

Best Regards, Mike

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's