Answer:
150 steps
Step-by-step explanation:
GOING UP:
Steps taken per second = speed = 3steps/s
Let Time taken = y
Number of steps = steps taken per second × time taken
Number of steps = 3 × y - - - - (1)
COMING DOWN:
Steps taken per second = 2steps/s
Total time taken = y + 25
Number of steps = 2 × (y + 25)
Number of steps = 2y + 50 - - - - - (2)
Equating (1) and (2)
3y = 2y + 50
3y - 2y = 50
y = 50
Substitute y = 50 into either (1) or (2)
Put y= 50 into (1)
Number of steps = 3y
Number of steps = 3(50)
Number of steps = 150
The domain of the function will be [-4, 6). Then the correct option is B.
The complete question is attached below.
<h3>What are domain and range?</h3>
The domain means all the possible values of x and the range means all the possible values of y.
The function is given below.
Then the domain of the function will be [-4, 6).
Then the correct option is B.
More about the domain and range link is given below.
brainly.com/question/12208715
#SPJ1
answer:
2. 3/2
1. y=-7
Step-by-step explanation:
