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3 years ago

2/v + 2 = 9 solve for v

2 answers:

8 0

2/v + 2 = 9
First we tranpose the 2

2/v = 9 - 2
2/v = 7
we now flip the entire equation
v/2 = 1/7
v = 1/7 × 2
v = 2/7

Verification:
2/(2/7) + 2 = 9
7 + 2 = 9
9 = 9

kenny6666 [7]3 years ago

6 0

2/v+2=9
-2 -2
2/v=7
(2)2/v=7(2)

V=14

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Fiesta28 [93]

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4 years ago

Consider the Matrix shown below:

shepuryov [24]

Answer:

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Step-by-step explanation:

The dimensions of any matrix are (m × n), where

m is the number of its row
n is the number of its column

Ex: Matrix A of dimensions (2 × 3) has 2 rows and 3 columns, where

$A_{1,1}$ means the element in the 1st row and 1st column

$A_{1,2}$ means the element in the 1st row and 2nd column

$A_{1,3}$ means the element in the 1st row and 3rd column

$A_{2,1}$ means the element in the 2nd row and 1st column

$A_{2,2}$ means the element in the 2nd row and 2nd column

$A_{2,3}$ means the element in the 2nd row and 3rd column

Now lets solve the problem

∵ The matrix B has 3 rows

∴ m = 3

∵ The matrix B has 4 columns

∴ n = 4

∴ The dimensions of matrix B are (3 × 4)

∵ $B_{2,4}$ means the element in the 2nd row and 4th column

∴ $B_{2,4}$ = 9

∵ $B_{3,2}$ means the element in the 3rd row and 2nd column

∴ $B_{3,2}$ = 6

- Find the value of $B_{2,4}$ - $B_{3,2}$

∵ $B_{2,4}$ - $B_{3,2}$ = 9 - 6

∴ $B_{2,4}$ - $B_{3,2}$ = 3

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4 years ago

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3 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

So if they are 400 students we need to:

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3 years ago

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Answer:

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