Answer:
1. 6 faces 11 verticles and 8 edges 2. 5 faces 12 verticles and 6 edges
Step-by-step explanation:
Answer:
12 tablespoons of butter
Step-by-step explanation:
Create a proportion:
= 
Cross multiply:
1/3x = 4
x = 12
= 12 tablespoons of butter
Answer:
57x = 1311
x = 23 hours
Step-by-step explanation:
I don't know how you would model this with two equations but the answer is 23 hours.
Answer:
z=-7
Step-by-step explanation:
x+y=22(double the average as there are two parts
x+y+z=22 (as shown in the last part)+z=15 (average tripled as there are three parts
22+z=15
z=15-22
z=-7