Explain why it does not matter what letter or symbol is used to find an unknown number

Answers

Answer 1

Answer: A variable represents an unknown quantity. No matter which variable you use, it will represent the same unknown quantity, and the same process will be used to solve the problem. Which variable you use is irrelevant.

Answer 2

Answer: It's because the letter represents a number, so it doesn't matter what letter.

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The distance to the nearest gas station is 2 4/5 kilometers. What is this distance written as a decimal?

Answers

the answer written as a decimal is 2.8 kilometers
5/1=.20
.20*4=.80
.80+2 is 2.8

SOS *Algebra one*Two functions are shown in the table below.

Function 1 2 3 4 5 6
f(x) = −x2 + 4x + 12
g(x) = x + 2

Complete the table on your own paper, then select the value that is a solution to f(x) = g(x).
x = 2
x = 3
x = 5
x = 6

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Answers

This can be done in two ways
One method is to check the answer options in both f(x) and g(x) and select the one that matches for both.
The second is to form a quadratic equation and solving as such:
f(x) = g(x)
-x² + 4x + 12 = x + 8
x² - 3x - 4 = 0
(x - 4)(x + 1) = 0
x = 4; x = -1
Only x = 4 is given in the options, so the answer is B

Answer: The correct answer is x=5

Step-by-step explanation:

What adds to -9, and multiplies to -70?

Answers

-14 and 5 (-14+5 = -9) and -14*5) = -70

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What is 8 and 21/40 as a decimal

Answers

If you would like to know what is 8 and 21/40 as a decimal, you can calculate this using the following step:

8 21/40 = 8 525/1000 = 8.525

Result: 8 and 21/40 as a decimal is 8.525.

It will be 8.525. Explenation: do 21/40=0.525 you need to add the 8 because it's a whole number so that equals=8.525

EDGE 2020 NEED HELPwhich is the graph of the function y=2 tan(x+3pi/4)

30 POINTS!!!!! PLEASE HELP