Answer:
55 mph
Step-by-step explanation:
First hour: 40 mph
Second, Third, Fourth hours:
180 miles / 3 hours = 60 mph
Average: 40 (hour 1) + 60 (hour 2) + 60 (hour 3) + 60 (hour 4) = 220 / 4 hours = 55 mph average
I hope this helps!
Answer:
Step-by-step explanation:
Decrease = 100 - 49 = 51
Percentage of decrease =

= 51%
Answer: slope is -3 and y-intercept is -2
Step-by-step explanation:
when x= 0, y=-2
when x=1, y=-5
i believe you have just to change the value of the letter x in the equation to find the value of y
Answer:
-2
Step-by-step explanation:
rise over run or, y2-y1/x2-x1