Answer:
After 30 minutes
Step-by-step explanation:
Birds pop out at:
6, 12, 18, 24, 30, 36, 42, 49, 54, 60 mins respectively [6 mins interval]
Also
Dancers pop out at:
15, 30, 45, 60 mins respectively [15 mins interval]
Since at birds and dancers have popped out now (let it be TIME 0), then what is the next number [in the number sequences above] where 2 of them are same??
Looking at the list, it is 30. Hence, It will happen again after 30 minutes.
Answer:
∠ a = 60° , ∠ b = 120°
Step-by-step explanation:
Supplementary angles sum to 180° then
x - 40 + x + 20 = 180 , that is
2x - 20 = 180 ( add 20 to both sides )
2x = 200 ( divide both sides by 2 )
x = 100
Then
∠ a = x - 40 = 100 - 40 = 60°
∠ b = x + 20 = 100 + 20 = 120°
Answer: D
Step-by-step explanation:
Answer–3x+2x-14>5x+10
Step-by-step explanation:
