Answer:
w= -3.75
Step-by-step explanation:
-5(4w+12) =15
-20w -60=15
-20w=75
w=-3.75
They would be the same being 250$ on the 5th month. The way I solved this is I made a equation for each being ( 10x + 200 = ) and ( 30x + 100 = ) If you put 5 in the place of x, you will multiply it by the 10 or 30 and add the original cost put in.
Answer:
1440°
Step-by-step explanation:
n = number of sides
n-2 x 180
10 - 2 = 8
8 x 180 = 1440°
Assume that a study of 500 randomly selected airplane routes showed that 482 arrived on time. Select the correct interpretation of the probability of an airplane arriving late. Interpret an event as significant if its probability is less than or equal to 0.05.
Answer: We are given that out of 500 randomly selected airplanes, 482 arrived on time.
Therefore, the probability of airplane being on time 
And the probability of airplane being late

Since the probability of airplane being late is 0.036, which is less than 0.05, therefore the event is significant at 0.036
Answer:
4 tiles
Step-by-step explanation:
Area of a square tile:
A = s²
A = (30)²
A = 900 cm
900 cm = 9 m
Area of the square room:
A = s²
A = (6)²
A = 36 m
36 ÷ 9 = 4