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Deffense [45]
3 years ago
6

Find the value of m 4(m-2)=24

Mathematics
1 answer:
Alla [95]3 years ago
6 0

Answer:

m = 8

Step-by-step explanation:

Solve for the value of the variable of <em>m</em>. Note the equal sign, what you do to one side, you do to the other. Remember to do the opposite of PEMDAS. PEMDAS =

Parenthesis

Exponent (& roots)

Multiplications

Divisions

Addition

Subtraction

.. and is the order of operation.

In this case, first, divide 4 from both sides:

(4(m - 2))/4 = (24)/4

m - 2 = 24/4

m - 2 = 6

Isolate the variable, m. Add 2 to both sides.

m - 2 (+2) = 6 (+2)

m = 6 + 2

m = 8

m = 8 is your answer.

Check. Plug in 8 to m in the equation. Remember to follow PEMDAS when solving:

4(8 - 2) = 24

4(6) = 24

24 = 24 (True).

m = 8 is your answer.

~

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3 years ago
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Area = 300 square feet
m_a_m_a [10]

Answer:

Length=24.32 feet

width=12.32 feet

Step-by-step explanation:

Let x be the width of a rectangle

Let l be the length of a rectangle

Let A be the area of rectangle

Given.

Length must be 12 feet longer than width

therefore

Length=12+w

l=12+w

Area of rectangle

A=300

We know that area of rectangle is

A=l\times w---------------------(1)

put all known values in equation 1

300=(12+x)\times x

x^{2} +12x=300\\x^{2} +12x-300=0

Find roots by this formula

=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}

=\frac{-12\pm\sqrt{12^{2}-4(1)(-300)}}{2(1)}

=\frac{-12\pm\sqrt{1344}}{2}

x=-6+4\sqrt{21} \\x=-6-4\sqrt{21}

x=12.32\\x=-24.32

check both value in equation 1

for x=12.32

A=(12+12.32)\times 12.32

A=299.62

x=12.32 is satisfy the equation

So The length of rectangle l=12+12.32=24.32 feet

And width is 12.32 feet

3 0
4 years ago
a can of cola says dat it contain 330ml a food inspector carefully measures d content of a can and find that it conatins 341ml.
daser333 [38]

Answer:

3.33%

Step-by-step explanation:

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Actual measure=341 ml

Difference between actual measure and factory measure is error

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Error (in ml)=11 ml

Percentage error=100* Error/Factory measure

Percentage error= 100*\frac {11 ml}{330}%

Percentage error=3.33%

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The manager at Jessica's Furniture Store is trying to figure out how much to charge for a couch that just arrived. The couch was
arlik [135]
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Explanation:

1) Data:

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4 years ago
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