Answer:
8 Books
Step-by-step explanation:
First find how many she had before buying 8 more-
12 - 8 = 4
Then multiply that by 2
4 x 2 = 8
The had 8 books to begin with
Answer:
Tasha made her mistake in step 4.
The value of x is 60, as you wrote. The sum of all angles in a triangle is 180°.
The sum of all angles on a straight line is also 180°. So to find y, solve for the third angle of the triangle on the left.
50 + 60 = 110. 180-110 = 70°.
Now we know 2 of the 3 angles along the line (70° and x, 60°)
70 + 60 + y = 180
130 + y = 180
y = 50
Hope this helps. LMK if you have questions.
A. Mean
Mean = Total / How many numbers there are
City A- Add all the numbers:
4 + 3.5 + 5 + 5.5 + 4 + 2 = 24
There are 6 numbers.
24 / 6 = 4
Mean = 4 for City A
City B- Mean:
Add all the numbers:
5 + 6 + 3.5 + 5.5 + 4 + 6 = 30
There are 6 numbers.
30 / 6 = 5
Mean = 5 for City B
B. MAD(Don't know this part)
C. Median
City A- Median:
There are 2 middle numbers.
They are 5 and 5.5
5 + 5.5 = 10.5
10.5 / 2 = 5.25
Median = 5.25 for City A
City B- Median:
The 2 middle numbers are 3.5 and 5.5
3.5 + 5.5 = 9
9 / 2 = 4.5
Median = 4.5 for City B.
Answers:
a. The mean for City A is 4. The median for City B is 5.
b. Don't know MAD
c. The median for City A is 5.25. The median for City B is 4.5
Hope this helped☺☺
That's how we found our answer was:
You can also go through your multiplication of
&
Good luck on your assignment and enjoy your day~
