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3 years ago

Catron evaluates the expression (negative 9) (2 and two-fifths) using the steps below.

Mathematics

2 answers:

Kazeer [188]3 years ago

6 0

Answer:

The answer is She incorrectly broke up 2 and two-fifths.

Step-by-step explanation:

Ede4ka [16]3 years ago

5 0

The error is:

She incorrectly broke up 2 and two-fifths.

Option A is correct option.

Step-by-step explanation:

We need to describes Catron’s error?

The steps are:

Step 1: (Negative 9) (2 + two-fifths)

Step 2: (Negative 9) (Negative 2) + (negative 9) (two-fifths)

Step 3: Negative 18 + (negative 9) (two-fifths)

Step 4: (negative 27) (two-fifths)

Solution: Negative StartFraction 54 over 5 EndFraction = Negative 10 and four-fifths

The error is:

She incorrectly broke up 2 and two-fifths.

Option A is correct option.

Solving

Solving the equation by removing the error:

Step 1: (Negative 9) (2 + two-fifths)

taking LCM of 2 and two-fifths (2/5)

Step 2: (Negative 9) (twelve-fifths)

Step 3: (Negative 9*twelve)-fifths

Step 4: Negative one hundred and eight- fifths

Solution: Negative StartFraction -108 over 5 EndFraction = Negative one hundred and eight- fifths

Keywords: Solving Expressions

Learn more about Solving Expressions at:

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Read 2 more answers

A student answers

Marina CMI [18]

So, we have the percentage she gets which is, 90% and the number of questions she answers correctly, which is 27

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