Use Euler's formula for polyhedra: V - E + F = 2
vertices - edges + faces = 2
So edges = vertices + faces - 2 = 18 + 11 - 2 = 27.
Answer:
27 edges.
Associate property because he was just rearranging the numbers using parentheses. Please mark me as brainiest!
Answer:
20x+40y=1200
Step-by-step explanation:
What I did is just add both minutes to find out what the time was I got 100 minutes and for distance I just added the both miles and it gave me 23 miles in total