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kow [346]
3 years ago
13

Explain the error. To find her total earnings for those two weeks, Nadia writes 7.5 x 18.5 + 20 =$158.75. Show the correct solut

ion.
Mathematics
1 answer:
noname [10]3 years ago
3 0

Answer:

it should be 20

Step-by-step explanation:


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the answer is 100.

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divide 1000 by 10

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Find the midpoint of the segment with the following endpoints.<br> (-4, 5) and (-1, 1)
Solnce55 [7]

Answer:

(-5/2 , 2)

Step-by-step explanation:

add the two x coordinates of the endpoints and divide by 2. Do the same for the y coordinates.

6 0
2 years ago
Please help 30 points and brainly answer :(
Tasya [4]

The graphs insect at 3 and 13

4 0
3 years ago
Many companies "grade on a bell curve" to compare the performance of their managers and professional workers. This forces the us
GarryVolchara [31]

Answer:

option A

Step-by-step explanation:

given,

10% A grades     80% B grades      10% C grades

This year, managers with scores less than 35 received C's and those with scores above 425 received A's.

The mean has to be middle of two corresponding cutoff value

              \mu = \dfrac{35+425}{2}

                      μ = 230

Cutoff Off C grade corresponds with the area of 0.10 is table A.

corresponding z- score according to Table A

           Z = -1.28

now, standard deviation

    z = \dfrac{x-\mu}{\sigma}

    \sigma= \dfrac{x-\mu}{z}

    \sigma= \dfrac{35-230}{-1.28}

       σ = 152.3

Correct answer is option A

4 0
3 years ago
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