Answer:45 mi/h
Step-by-step explanation:
Recall: Speed = distance / time
Let the time taken for the morning journey be 
and the time taken for the afternoon journey be ,and the distance covered be d
that means for the first journey,
30 = 
d = 30
Also for the afternoon journey,
d = 60 
Equating the two , since the same distance is being covered , we have
30 = 60
that is
= 
= 2
Also ,
total distance covered = 30 + 60
Average speed = total distance / total time
= 30 + 60 / +
Recall that = 2 , substitute this into the formula for average speed , then we have
Average speed = 30(2) +60 / 3
Average speed = 120 / 3
Therefore :
Average speed = 40 mi/hr
Answer:
A
Step-by-step explanation:
A 2-column table with 5 rows. Column 1 is labeled Key Words with entries twelve, more than, quotient, a number, eight. Column 2 is labeled Replace with entries 12, +, divided by, k, 8.
Write and evaluate the expression. Then, complete the statement.
twelve more than the quotient of a number and eight
The value of the expression when k = 40 is
.
I would like help with this
Answer:
1, 2, 8, 128, 32768
Step-by-step explanation:
Thus the first five terms are: 1, 2, 8, 128, 32768.
X-6=0
Add +6 to both sides of the equation to get rid of -6 and leave x by its self.
X+1=0
Subtract -1 to both sides of the equation to get rid of +1 and leave x by its self.
Solution:
X= 6
X= -1
Hope this helped ;)
