Answer:
the answer for this question should be b the mean best describes the data because remember if there is an outlier you should use the median not the mean because outliers can impact a lot the mean but if there are no outliers you should use the mean so hopefully b is the correct answer and have a great day.
Step-by-step explanation: Hopefully b is the correct answer and tell me if its right or not.
Answer: -5
Step-by-step explanation:
Answer:
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Step-by-step explanation:
Let x = Courtney's walking speed
then
(x + 1) = Brandi's walking speed
:
Time = Distance/speed
Brandi walks 6.5 mi time = Courtney walks 5 mi time
6.5/x + 1 = 5/x
Cross multiply
6.5x= 5(x+1)
6.5x= 5x + 5
6.5x - 5x = 5
1.5x = 5
x = 5/1.5
x = 3.33 mph is Courtney's walking speed
Note that:
(x + 1) = Brandi's walking speed
3.33mph + 1 = 4.33mph
Therefore,
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Answer:
8a - 4b
Step-by-step explanation:
4(2a-b)
8a - 4b
Answer:
7/18
Step-by-step explanation:
Total Number of Boys in both grades:
4+3=7
Total Number of Students:
8+10=18
Number of boys/ number of students:
7/18
