Answer:
A. 11
Step-by-step explanation:
Since the angles are vertical angles (share a vertex) they are equal in measure.
160 = 10x + 50
subtract 50 from both sides
110 = 10x
divide both sides by 10
x = 11
Answer:
Step-by-step explanation:
Consider that F(x,y,z) = (x + y, y + z, z + z)
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Answer:
or 
Step-by-step explanation:
we know that
To find the unit rate divide 27 1/5 by 4/5
but first
Convert mixed number to an improper fraction

so

They will see each other every 30 days but won't every 15 days
86.
Fatima has 40
Nora has “6 + (40 x 2)”
6+(80) = 86