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Svetlanka [38]
3 years ago
5

When x= 5 the value of the expression 20/-25 + x (x - 10) is

Mathematics
2 answers:
ASHA 777 [7]3 years ago
3 0
The answer is -25.8 because 5-10=-5, -5*5=-25, then you simplify fraction and add/subtract
garik1379 [7]3 years ago
3 0

Answer:

\frac{-129}{5}

Step-by-step explanation:

We have been given an expression \frac{20}{-25}+x(x-10). We are asked to evaluate our given expression, when x=5.

To evaluate our given expression, we will substitute x=5 in our given expression as:

\frac{20}{-25}+5(5-10)

-\frac{4}{5}+5(-5)

-\frac{4}{5}-25

Make a common denominator:

-\frac{4}{5}-\frac{5*25}{5}

-\frac{4}{5}-\frac{125}{5}

\frac{-4-125}{5}

\frac{-129}{5}

Therefore, the value of our given expression \frac{-129}{5}.

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