Solve for x.

2x-4/10 = 2x/20

Answers

Answer 1

Answer: Refine:

$(2x-4)/(10)$

factor out common term 2 :

$(2(x-2))/(10)$

Cancel the common factor 2 :

$(x-2)/(5)$

Refine:

$(2x)/(20)$

$(x-2)/(5) = (x)/(10)$

find least common multiplier of 5 and 10

Multiply by LCM = 10

$(x-2)/(5) *10 = (x)/(10) *10$

$2(x-2)=x$

$2x - 4 = x$

Add 4 to both sides:

$2x-4+4 = x+4$

$2x = x + 4$

$2x - x = 4$

$x = 4$

hope this helps!

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Write the product using exponents. (−9)⋅(−9)⋅(−9)⋅(−9)⋅(−9)

Answers

Answer:

Step-by-step explanation:

(-9)⁵

(-9) is appearing 5 times

Answer:

-9^5

Step-by-step explanation:

(-9)*(-9)*... is -9^5

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Which of the following are square roots of the number below? Check all thatapply.
100
A. 10
B. 1001/2
C. 5
D. -1001/2
E. -10
E. 50

Answers

The square root of the number 100 will be 10 so option A is correct.

What is a perfect square?

A perfect square is a number system that can be expressed as the

square of a given number from the same system.

We have been given a number 100.

In order to find the square root of the number;

$√(100) \n\n√(10 * 10) \n\n10$

Thus, the square root of the number 100 will be 10 so option A is correct.

Learn more about cube root here:

brainly.com/question/16048106

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The Answer is C. 5 D. -1001/2 F. 50

an item that costs $50 is marked 20% off. sales tax for the item is 8%. What is the final price, including tax

Answers

$Marking\ off:\ 50-20\%*50=50-0.2*50=50-10=40\$\n\nTax:\ 40\$+8\%*40=40+0.08*40=40+3.2=43.2\$\n\nFinal\ price\ is\ 43.2\$.$

a wireless company offers two cell phone plans. Plan A charges 24.95 per month plus 0.10 per minute for calls. Plan B charges 19.95 per month plus 0.20 per minute. Use the questions to find when the two plans cost the same.