Answer:
40
Step-by-step explanation: Total distance = 60 miles
Total time = 30 / 30 + 30/60 = 3/2
Avg. speed = 40.
Answer:
10 ft
Step-by-step explanation:
Use theorem pythagoras
Length = x

the answer is 10 because length can't be in negative number
Answer:
B. 12.5
Step-by-step explanation:
We have the lowe confidence interval = 185
The upper confidence interval = 210
Mean of X = (lower confidence + upper confidence interval)/2
Mean of X = 185 + 210/2
= 197.5
The margin of error = the upper confidence interval - mean of X
= 210-197.5
= 12.5
1. 3x-6+2x+108+88=360
5x=170
x=34
2. figure B