jesserivera351793 jesserivera351793
  • 10-01-2020
  • Mathematics
contestada

Brady said that the expression 2.6 - (1.3 - 4.5) is equivalent to 1.3 - 4.5. Work out the problem and explain in writing Brady’s error.

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kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 22-01-2020

Answer:

Brady did not distribute the -1 correctly.

Step-by-step explanation:

The given expresion is

[tex]2.6 - (1.3 - 4.5)[/tex]

Recall that for all real numbers a, b, and c, the distributive property says that:

[tex]a(b + c) = ab + ac[/tex]

We apply this property to get:

[tex]2.6 - (1 .3 - 4.5) = 2.6 - 1.3 + 4.5[/tex]

[tex]2.6 - (1 .3 - 4.5) = 1.3 + 4.5[/tex]

But Brady said it is equivalent to 1.3-4.5

Hence Brady did not apply the distributive property correctly.

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