Answer:
90
Step-by-step explanation:
the colums add up to angle 1, which make angle 2 adjacent.
9-9=0
Answer:
50% Red, 50% Black
Hope this helps:)
Step-by-step explanation:
Answer:
x=6 y=-3
Step-by-step explanation:
Answer:
20 miles
Step-by-step explanation:
d miles × (1 h)/(10 miles) = d/10 hours
d miles × (1 h)/(40 miles) = d/40 hours
d/40 = d/10 - 3/2
d = 4d - 60
d = 20 miles
Answer:
B
Step-by-step explanation:
the sum of the roots = - 
x² + 6x - 55 = 0
with a = 1 , b = 6 , then
sum of roots = -
= - 6