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ArbitrLikvidat [17]
3 years ago
5

there are 4 lunch choices in a school cafeteria.The percentage of students that chose salad is 15%.If 300 students ate lunch, wh

at is the total number of students that chose salad.
Mathematics
2 answers:
Sergio [31]3 years ago
8 0

I hope this help

it is 45


Ad libitum [116K]3 years ago
3 0
Just do 15 times 3
the answer is 45 students
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What is 20 divided by 10 plus 50
Deffense [45]

Answer:

20/10 + 50=52

Step-by-step explanation:

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Which of the following is NOT equivalent to the nxn matrix A being invertible? A. The homogeneous system associated to A has a u
storchak [24]

Answer:

Option C

Step-by-step explanation:

  • For the matrix A of order n\times n to be invertible, its determinant must not be equal to zero, |A| \neq0, A^{- 1}  exists if- AC = CA = I, where I is identity matrix.
  1. The homogeneous equation with coefficient matrix A has a unique solution:

       AB = 0, B = A^{- 1}.0 = 0

      Thus, B = (0, 0, 0......., 0) is a unique solution

     2. The non - homogeneous equation system with coefficient matrix A has  a unique solution:

For an equation- AY = D

Y = A^{- 1}.D is a unique solution

     3. Every non homogeneous equation with coefficient matrix A is not consistent as:

For an equation- AY = D, has a solution.l Thus coefficient matrix is inconsistent whereas augmented matrix is.

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5 0
3 years ago
Simplify 5(x – 2) + 11
Licemer1 [7]

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5x + 1

Step-by-step explanation:

5 0
2 years ago
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Period of f(t)= -2cos(3t)
ivann1987 [24]

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Step-by-step explanation:

8 0
2 years ago
Compute the following radical.<br> sq root 144
lara31 [8.8K]

we are given

\sqrt{144}

Firstly, we will find all possible factors of 144

144=2\times 2\times 2\times 2\times 3\times 3

we can also write as

144=(2\times 2)^2\times (3)^2

now, we can put exponent to over entire term

144=(2\times 2\times 3)^2

now, we can replace 144

\sqrt{144}=\sqrt{(2\times 2\times 3)^2}

now,  sqrt will get cancelled with square

and we get

\sqrt{144}=(2\times 2\times 3)

now, we can simplify it

\sqrt{144}=(4\times 3)

\sqrt{144}=12.............Answer


3 0
3 years ago
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