Answer:
7 x 2, 14, the area, then use pie, 3.14 to get the circle
Step-by-step explanation:
Answer:
x = 120 degrees
Step-by-step explanation:
50 + 70 = 120
Answer: I can answer in a bit
I think you have to roll it um untill I roll a 4 I'm srry
Step-by-step explanation:
I need more to answer
Answer:
4 mph
Step-by-step explanation:
The average speed of an object is given by the total distance covered by the time taken:

where
d is the total distance covered
t is the time taken
in the first part, the person runs for 0.4 hours at a speed of 7 mph, so the distance covered in the 1st part is

Then the distance covered in the second part is
, so the total distance is
(1)
The total time elapsed is 0.4 hours (first part) + 0.8 hours (second part), so

So we can write the average speed as
(1)
We want the average speed to be 5 mph,
v = 5 mph
Therefore we can rearrange eq.(1) to find d2:

And therefore, the speed in the second part must be
