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3 years ago

Find the mean of the data

Mathematics

2 answers:

Inga [223]3 years ago

8 0

Answer:

103

Step-by-step explanation:

pogonyaev3 years ago

4 0

108+103+98+105+85+112+119+82+94+115+126+89 = 1236

1236÷12 =103

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Fiona wrote the linear equation y = 2/5 x – 5. When Henry wrote his equation, they discovered that his equation had all the same

Hoochie [10]

we have

$y=\frac{2}{5}x-5$

Let's Isolate the variable y in each of the cases and then compare with Fiona's equation to determine the solution of the problem

case A) $x-\frac{5}{4}y= \frac{25}{4}$

Multiply by $4$ both sides

$4x-5y= 25$

$5y=4x-25$

Divide by $5$ both sides

$y=\frac{4}{5}x-5$

therefore

the case A) is not equal to Fiona's equation

case B) $x-\frac{5}{2}y= \frac{25}{4}$

Multiply by $4$ both sides

$4x-10y= 25$

$10y=4x-25$

Divide by $10$ both sides

$y=\frac{2}{5}x-2.5$

therefore

the case B) is not equal to Fiona's equation

case C) $x-\frac{5}{4}y= \frac{25}{2}$

Multiply by $4$ both sides

$4x-5y= 50$

$5y=4x-50$

Divide by $5$ both sides

$y=\frac{4}{5}x-10$

therefore

the case C) is not equal to Fiona's equation

case D) $x-\frac{5}{2}y= \frac{25}{2}$

Multiply by $2$ both sides

$2x-5y= 25$

$5y=2x-25$

Divide by $5$ both sides

$y=\frac{2}{5}x-5$

therefore

the case D) is equal to Fiona's equation

<u>the answer is</u>

$x-\frac{5}{2}y= \frac{25}{2}$

7 0

3 years ago

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Write the expression in complete n^2(n+8)-4(n+8)

MakcuM [25]

Answer:

(n^2-8)(n+8) is the answer

6 0

4 years ago

Identify the variable expression that is not a polynomial.

alexira [117]

Answer:

B. $3\sqrt x -2$

Step-by-step explanation:

Option B is the correct answer

3 0

3 years ago

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I need help hah lol " It's too short. Write at least 20 characters to get a great answer. " there.

marishachu [46]

Answer:

54.872

Step-by-step explanation:

volume of a cube = s³

where s = side length

side length given here is 3.8

so volume = 3.8³ = 54.872

7 0

2 years ago

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A university has raised $8,000 for a new scholarship fund. A university trustee offers to match the donation up to 60% if the un

inysia [295]

$8,000 + $1,500 = 9,500

So 9,500 x .6 = 5,700 dollars donated by trustee.

$9,500 + $5,700 = $15,200 dollars tota

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3 years ago

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