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tresset_1 [31]
3 years ago
7

Solve the equation.

Mathematics
2 answers:
DENIUS [597]3 years ago
6 0
Hello :)

11,3x+7,2=86,3
⇔11,3x=86,3-7,2=79,1
⇔x=79,1/11,3= 7

The answers is c) 7 :). 

Oduvanchick [21]3 years ago
4 0

Answer:

The correct option is C) 7.

Step-by-step explanation:

Consider the provided equation.

11.3x+7.2=86.3

We need to solve the provided equation for x.

Subtract 7.2 from both side.  

11.3x+7.2-7.2=86.3-7.2

11.3x=79.1

Divide both sides by 11.3.

\frac{11.3x}{11.3}=\frac{79.1}{11.3}

x=7

Hence, the value of the equation is x=7.

Thus the correct option is C) 7.

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Answer:

64π m³

Step-by-step explanation:

The general formula for the volume of a cylinder:

V = πr²h, where 'r' is the radius and 'h' is the height

In the given problem, the radius is equal to 4 m and the height is equal to 4 m.  Plugging these values into the equation:

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5 0
4 years ago
Help me with this math problem please
mrs_skeptik [129]

Answer:

y=8

RS=77, ST=31

Step-by-step explanation:

Note that the entire segment RT is the combined lengths of RS and ST. So:

RT=RS+ST

We know that RT is 108, RS is (9y+5), and ST is (3y+7). Substitute:

108=(9y+5)+(3y+7)

On the right, combine like terms:

108=(9y+3y)+(5+7)

Add:

108=12y+12

Subtract 12 from both sides. The right cancels:

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To find RS and ST, substitute 8 for y. So:

RS=9y+5

Substitute 8 for y:

RS=9(8)+5

Multiply:

RS=72+5

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Substitute 8 for y:

ST=3(8)+7

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