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Mrrafil [7]
2 years ago
15

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

Mathematics
2 answers:
german2 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 }}

dsp732 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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I hope you got the idea



3 0
2 years ago
Evaluate the expression when x-3<br> 4x2 - 14x + 4
Lady_Fox [76]

Answer:

82

Step-by-step explanation:

Evaluate 4 x^2 - 14 x + 4 where x = -3:

4 x^2 - 14 x + 4 = 4×(-3)^2 - -3×14 + 4

(-3)^2 = 9:

4×9 - 14 (-3) + 4

4×9 = 36:

36 - 14 (-3) + 4

-14 (-3) = 42:

36 + 42 + 4

| 1 |  

| 4 | 2

| 3 | 6

+ | | 4

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Answer:  82

6 0
2 years ago
Hi! ❤️ , im looking for some help here. ill give brainliest if able to.
Alexeev081 [22]

Answer:

A. 2^11

Step-by-step explanation:

(They are basically asking what's 2^4 × 2^7, but with more words.)

I usually do each exponent individually:

2^4 is the same as 2 × 2 × 2 × 2 = 16 (or you could have read the text to figure that out)

2^7 is the same as 2 × 2 × 2 × 2 × 2 × 2 × 2 = 128

Then just multiply 128 and 16 to get 2,048, and see which option also gives you 2,048.

BUT, you can also:

(Combine the exponents together to get your answer. Just remember that if it's multiplication you add them, and if it's division you subtract them.)

2^4 × 2^7

4 + 7 = 11

2^11 (This equals 2,048 btw. You don't even have to check all the options to get the answer).

Hope this helps friend :)

The last part I learned from another user, while answering one of your other questions. I personally find this mind blowing, lol.

4 0
2 years ago
write the slope intercept form of the equation of each line given the slope and y intercept. // slope= 1/3 y-intercept= 4 // slo
professor190 [17]

Answer:

Slope: 1/3; Y-iintercept: 4     y=1/3x+4

Slope: -2;  Y-intercept: 4      y=-2x

Step-by-step explanation:

Hope this helps :3

if it did pls mark brainliest

6 0
2 years ago
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