Answer:
48
Step-by-step explanation:
A - B - C - - - D
12 + 12 + 24 = 48
Segment B is midpoint between AC therefore the length between AB is equal to the length between BC. C is midpoint of of AD therefore the length between AB + BC is equal to the length between CD. IF AB is 12 then AB is 12. AC will be 24. Since CD is equal to AD, CD must also be 24. AD is distance AC plus CD = 48.
Answer:
B
Step-by-step explanation:
B
Answer: 155y seconds
Step-by-step explanation:
Difference between 3y minutes and 25y seconds is written as
3y minutes- 25y seconds
First, Convert minutes to seconds = 60 seconds makes 1 minute, therefore, 3 minutes = 60 x 3= 180 seconds
Therefore 180y seconds - 25y seconds
= 155y seconds
I hope this helps, please mark as brainliest answer
The first step in solving this question is to split the journey into 2 parts. In the first part of the journey, 
miles are covered at a speed of 40 mph. In the second part the journey 5 miles are covered at a speed of 60 mph.
The equation to compute the time of a journey given the speed and distance is 
where 
is the time, 
is the speed and 
is the distance.
The time for the first part of the journey is calculated as shown below,
.
The time for the second part of the journey is calculated as follows,
.
The total time is the sum of the times taken to cover each part of the journey and is calculated as shown below,
The time to cover the journey is a third of an hour or 20 minutes.
