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Mrrafil [7]
3 years ago
15

HELP ME SOLVE THUS PLEASE! 50 POINTS WILL BE REWARDED!!!!

Mathematics
2 answers:
german3 years ago
6 0

\huge \boxed{\mathbb{QUESTION} \downarrow}

\tt\frac { 2 ( x - 1 ) } { 4 } = \frac { 2 ( x + 8 ) } { 13 } \\

\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}

\tt\frac { 2 ( x - 1 ) } { 4 } = \frac { 2 ( x + 8 ) } { 13 } \\

Cross multiply the equations on both sides.

\tt13\times 2\left(x-1\right)=4\times 2\left(x+8\right)

Multiply 13 and 2 to get 26.

\tt26\left(x-1\right)=4\times 2\left(x+8\right)

Use the distributive property to multiply 26 by x-1.

\tt26x-26=4\times 2\left(x+8\right)

Multiply 4 and 2 to get 8.

\tt \: 26x-26=8\left(x+8\right)

Use the distributive property to multiply 8 by x+8.

\tt \: 26x-26=8x+64

Subtract 8x from both sides.

\tt \: 26x-26-8x=64

Combine 26x and -8x to get 18x.

\tt \: 18x-26=64

Add 26 to both sides.

\tt \: 18x=64+26

Add 64 and 26 to get 90.

\tt \: 18x=90

Divide both sides by 18.

\tt \: x=\frac{90}{18}  \\

Divide 90 by 18 to get 5.

\boxed{ \boxed{ \bf \: x=5 }}

dsp733 years ago
3 0

Answer:

x=5

Step-by-step explanation:

2(x−1)/4=2(x+8)/13

Step 1: Cross-multiply:

2(x−1)*(13)=2(x+8)*(4)

26x−26=8x+64

Step 2: Subtract 8x from both sides.

26x−26−8x=8x+64−8x

18x−26=64

Step 3: Add 26 to both sides.

18x−26+26=64+26

18x=90

Step 4: Divide both sides by 18.

18x/18= 90/18

x=5

~Hope this helps~

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ikadub [295]

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Step-by-step explanation:

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6 0
3 years ago
What is the justification for each step in the solution of the equation?
otez555 [7]

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First you would distribute the 2 into the parenthesis

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Then you would subtract 2x on both sides because u have to get the x's on one side

It will look like this after:21x-13=4

Then you would add 13 to both sides

It will look like this after: 21x=17

Then you would divide 21 on both sides

Your final product is 21/17


7 0
3 years ago
Diff Eq dy/dx= (ycos(x))/(1+y^2) initial condition is y(0)=1 work below ...?
Volgvan
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5 0
3 years ago
Determine the surface area of the cylinder below.
Dahasolnce [82]

Answer:

<u>9π m²</u>

Step-by-step explanation:

We will need calculate the area of the top, the base and  sides.

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Area of the base=πr²

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Surface area of a cylinder=πr²+πr²+2πrh=2πr²+2πrh=2πr(r+h)

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6 0
3 years ago
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ratelena [41]

Answer: Mean: 17.14                                                                                           Range: 20.

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32-12                                                                                                                       20

6 0
3 years ago
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