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OlgaM077 [116]
3 years ago
8

The test scores for last week's History test were:

Mathematics
2 answers:
liberstina [14]3 years ago
8 0
It would be C. The mean and median would get closer together.
Zina [86]3 years ago
6 0
C)The mean and the median get closer together.

Before adding 60 and 68:
<span>Median 90 Mean 86
After adding 60 and 68:
<span>Median 84 </span>Mean 82</span>
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Khan academy question multiple choice
Savatey [412]

Answer:

<u>C</u>:  <em>3x + 80 + 2x = 180</em>

Step-by-step explanation:

A straight line is equal to 180 degrees total the find x, you would add the number within the line and make it equal to 180.

3x + 80 + 2x = 180

add like terms

5x + 80 = 180

subtract 80 from each side

5x = 100

divide each side by 5

x = 20

4 0
3 years ago
PLEASE HELP!! 10 POINTS!!WILL MAKE BRAINLIEST
Grace [21]

58):  Solution =====>    Letter Choice,  (C)      1.25m      =       1.50(m      -      2)

Let's solve your equation step-by-step.

1.25m       =      1.5(m     −     2)

Step 1: Simplify both sides of the equation.

1.25m     =        1.5(m    −      2)

1.25m     =      (1.5)(m)       +        (1.5)(−2)                                  (Distribute)

1.25m       =       1.5m          +           −3

1.25m        =       1.5m       −       3

Step 2: Subtract 1.5m from both sides.

1.25m      −       1.5m      =      1.5m     −      3      −       1.5m

−0.25m           =            −3

Step 3: Divide both sides by -0.25.

-0.25m/ -0.25        =          -3/ -0.25

m       =========>    12

Answer    ===========>      m       =        12



59):   Let  your Number be:    D  

Solution:     =====>    7D       =      5D        -      3   =====>  -3/2    =====>    -1.5

Seven Times a number:

7   *     D      or    7(D)

Three Less than Five Times that Number:

5D     -     3

7D       =        5D       -    3

Solve for D:

7D   =    5D     -    3

Subtract   5D   from both sides:

7D   -    5D      =    5D     -     3      -   5D

2D       =           -3

Divide both sides by  2:

2D/2     =       -3/2

D                   =             -3/2

Answer  ==>  D  ====>      -3/2     ========>    Letter Choice, (F)      - 1.5




60):    Letter Choice,   (C),    3x      -     9      =    5x  

Let's solve your equation step-by-step.

3x       −      9       =         5x

Step 1: Subtract 5x from both sides.

3x      −       9       −      5x      =      5x     −      5x

−2x       −     9       =      0

Step 2: Add 9 to both sides.

−2x      −       9        +      9       =       0       +      9

−2x       =       9

Step 3: Divide both sides by -2.

-2x/ -2      =      9/ -2

x        =            -9/2

Answer   ========>         x         =       -9/2       =======>  4.5




61):   Subtract:

500    -      120

=      380

Need to total 500:

380

Find Number of Weeks Divide:

380/20    =      19  Weeks

7   *   19     =    133  

Days it will take Nichole to save  $500.00 =======>   133 Days





62):    Gridded Response:

Solve:

- 2(x     -     1 )       +        5x       =     2(2x        -     1 )  ======>      x     =      4

( -2 )(x)     +     ( -2)( - 1 )    +     5x     =   (2)(2x)      +    (2)( - 1 )

Distribute:

- 2x     +  2     +    5x     =     4x      +        - 2

( - 2x     +    5x )       +        (2)        =       4x     -     2       (Combine  Like terms):

3x    +   2        =    4x       -    2

3x         +      2     =      4x      -   2

Subtract   4x   From both sides:

3x     +    2      -     4x       =       4x     -     2      -    4x     -     x     +   2     =      -2

Subtract  2   from both sides:

-x     +     2    -   2       =         -2       -      2

-x         =       -4

Divide both sides  by     -1:

-x/ -1      =      -4/ -1

x         =     4

Answer   =====>      x      =      4           Check the Graph down below  for Gridded Response on Number 62.      






Hope that helps!!!                                            : )     _P_












6 0
3 years ago
Georgina likes to read during her summer break. The table below shows the number of pages in each book she read last summer and
Burka [1]

The correct answer would be:

B. The number of pages in each book varied more last summer than this summer.

Step-by-step explanation:

I was doing my test and this was the correct answer. Sorry if this is too late for you.! I hope you have a great day.

3 0
3 years ago
Neela is making rectangular place mats that are 12 inches wide and 15 inches long. What is the least amount of ribbon that she w
schepotkina [342]
Believe it or not, :), the width of the ribbon needs to be known to get the right answer.  If the ribbon had an infinitely small width the ribbon needed would just be the perimeter.

P=2(L+W)

P=2(12+15)

P=54 in

However an infinitely small width is not something that has any practical application.  For example, if the width of the ribbon were 1/2 in.

P=2((L+1)+W)

P=2(16+12)

P=56 in  So the perimeter increased by 2 in when the ribbon was only 1/2 in wide.

The "infinitely small" width and the perimeter of 54 in is only a decent approximation if the ribbon were a very thin string.
8 0
4 years ago
What types of symmetry can a shape have?
Xelga [282]

Answer: rotational symetry, reflection, and point

Step-by-step explanation:

6 0
3 years ago
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