Answer:
Icosahedron
Step-by-step explanation:
Icosahedron has 20 faces and all the faces are equilateral triangle. Also the faces are congruent and the Icosahedron is one of the five Platonic solids.
Assume that the larger number is m and the smaller one is n.
the larger is 10 less than twice the smaller, this means that:
m = 2n-10
the sum of the two is 38, this means that:
m+n = 38
substitute by the first equation in the second one:
2n-10+n=38
3n=48
n= 16
substitute by n in the first equation:
m=2n-10=2(16)-10= 22
based on this,
the larger number is 22 while the smaller number is 16
Answer: 8+(-40)
Step-by-step explanation:
You’re using distributive property you would multiply 8 and c which equals 8 because c=1 and then you would multiply 8•(-5) which would be -40 so your answer would be 8+(-40)
X=19.5 because 50 + 52 (like terms) is 102, and when you subtract that from 180 it gives you 78 which you then need to divide by 4, resulting in your final answer.