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taurus [48]
3 years ago
14

What does algebra mean in math

Mathematics
2 answers:
Harman [31]3 years ago
8 0
Algebra is a question that uses any letter of the alphabet to replace a missing box, example:
4y equals 20 because 4 x<u> 5 </u>is 20

Ghella [55]3 years ago
5 0
Algebra is solving for the unknown so
 if you have 10 apples and you give 5 to your friend, how many apples would you have so that is also 10-5=x solve for x

or it could be more complicated like (x-2)/6+4x-3=17
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Which expression is equivalent to 7(-3k)
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-21k=7(-3k)................………………

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Brainliest to best answer.
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The table below shows two equations:
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Estimate the percentage: 6,683 of 20,489<br> a. 0.3% c. 3%<br> b. 43.3% d. 33.3% Explain
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6 0
2 years ago
What is the equation of this line?
andrew-mc [135]
One way to write a line is y=mx+b, where b is a number, m is the slope of the line, and y and x are variables that you can plug numbers into. We know that we have two points, (0,5) and (10,0). To find the slope of a line, we can use the equation
\frac{y_{2}-y_{1}}{x_{2}-x_{1}} =  \frac{y_{1}-y_{2}}{x_{1}-x_{2}}
Plugging this in for our points, we get \frac{0-5}{10-0} = -5/10=-1/2 as our slope (we get -1/2 by dividing both -5 and 10 by 5 from the previous fraction), making our equation y=(-1/2)x+b. Plugging a point in to find out what b is, we get 0=(-1/2)10+b=-5+b. Adding 5 to both sides to separate the b, we get 5=b, making our equation y=(-1/2)x+5. To find out what x is for (x,2), since the y value comes second, we can plug in 2 into our equation to get 2=(-1/2)x+5. Since we want to solve for x, we have to separate it. Subtracting 5 from both sides, we get -3=(-1/2)x. Since we can multiply -1/2 by its reciprocal (switching the numerator and denominator) to get 1 (and therefore x on the right sides as 1*x=x), we multiply both sides by -2 to get 6=x, making the point (6,2)

Feel free to ask further questions!
4 0
3 years ago
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