The error Soro makes while solving inequality is that "Soro should have reversed the inequality symbol when using the division property of inequality".
<h3>What are inequalities?</h3>
Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.
It is mostly denoted by the symbol <, >, ≤, and ≥.
The inequality is given as 50-2.5x≥20, now solving the inequality,
![50-2.5x \geq 20\\\\\text{Subtract -50 from both the sides}\\\\50-2.5x -50\geq 20-50\\\\-2.5\geq -30](https://tex.z-dn.net/?f=50-2.5x%20%5Cgeq%2020%5C%5C%5C%5C%5Ctext%7BSubtract%20-50%20from%20both%20the%20sides%7D%5C%5C%5C%5C50-2.5x%20-50%5Cgeq%2020-50%5C%5C%5C%5C-2.5%5Cgeq%20-30)
Divide both sides of the inequality by -2.5x, therefore, reverse the inequality symbol when using the division property of inequality.
![\dfrac{-2.5x}{-2.5} \leq \dfrac{-30}{-2.5}\\\\x \leq 12](https://tex.z-dn.net/?f=%5Cdfrac%7B-2.5x%7D%7B-2.5%7D%20%5Cleq%20%5Cdfrac%7B-30%7D%7B-2.5%7D%5C%5C%5C%5Cx%20%5Cleq%2012)
Hence, the error Soro makes when writing or solving inequality 50-2.5x≥20, is that "Soro should have reversed the inequality symbol when using the division property of inequality".
Learn more about Inequality:
brainly.com/question/19491153
Answer:
the remainder is not just added to the quotient. it becomes the numerator of a fraction that is added to the quotient. the correct answer is x-3- the process works for dividing any polynomial
As for this, we have to take in the given equivalents and work with them to get the commission for selling each suit and each pair of shoes.
Let us put first that each suit is represented with a and for each pair of shoes, we represent them with b.
The given equations would be these:
47 = 3a + b
107 = 7a + 2b
Now we use the first equation to use for substitution purposes. We would first determine b in the process. To find b, we would be utilizing the equation
b = 47 - 3a
We then move to substitution.
107 = 7a + 2b
107 = 7a + 2(47 - 3a)
107 = 7a + 94 - 6a
107 - 94 = 7a -6a
13 = a
now that we have the value for a, we then use it to find b.
b = 47 - 3a
b = 47 - 3(13)
b = 47 - 39
b = 8
So the answer would be 13 for each suit and 8 for a pair of shoes.