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Ivahew [28]
3 years ago
13

there are 30 students in ms. McClendon's science class. of the students: 1/2 completed their homework, 40% said there dog ate th

eir homework and the rest were absent. what percent of the students were absent?
Mathematics
1 answer:
Lina20 [59]3 years ago
3 0

Answer: 10% were missing


Step-by-step explanation:

30 Students = 100% FYI in the problem

1/2 = 50%

50% + 40% = 90%

100% - 90% = 10%

Hope this helps.

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Vinvika [58]

The polynomial remainder theorem states that the remainder of the division of a polynomial P(x) by x-a is equal to P(a).

Therefore

P(-2)=4\\2\cdot(-2)^3 - 4\cdot(-2)^2 + k\cdot(-2) + 10=4\\-16-16-2k=-6\\-2k=26\\k=-13

8 0
3 years ago
Peaches are being sold for $2 dollars per pound if x represents the number of pounds of peaches bought and y represents the tota
Alex787 [66]

I'm guessing you want an equation.

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8 0
3 years ago
A trucking company uses matrix A , shown below, to represent the driving time in hours for 6 trucking routes. A = [ 4 6 8 ]
zepelin [54]

Each element of the matrix are multiplied by the scalar to form a matrix of

same size as the original matrix in matrix scalar multiplication.

  • 60 \cdot A = \left[\begin{array}{ccc}240\4&360&480\\360&480&600\end{array}\right]

Reasons:

The matrix <em>A</em> is presented as follows;

A = {\left[\begin{array}{ccc}4&6&8\\6&8&10\end{array}\right]}

Using the multiplication of a matrix and a scalar, we have;

60 \cdot A = 60 \cdot  \left[\begin{array}{ccc}4&6&8\\6&8&10\end{array}\right] =  \left[\begin{array}{ccc}60 \times 4&60 \times 6&60 \times 8\\60 \times 6&60 \times 8&60 \times 10\end{array}\right] = \left[\begin{array}{ccc}\mathbf{240}&\mathbf{360}&\mathbf{480}\\\mathbf{360}&\mathbf{480}&\mathbf{600}\end{array}\right]

Therefore;

60 \cdot A = \left[\begin{array}{ccc}240\4&360&480\\360&480&600\end{array}\right]

Learn more about matrices here:

brainly.com/question/14296012

6 0
3 years ago
3(x + 5) = 39 I dont understand this problem
Dvinal [7]
3(x+5)=39
3x+15=39
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5 0
3 years ago
Read 2 more answers
2/7 times 5 and 1/2 simplified
rjkz [21]

Answer:

1.928

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
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