Question

At first, Brianna earned a score of 90 on the quiz. She discovered that 4 had been taken off by mistake. Brianna showed the teacher, removed the 4-points deduction. Which two quiz scores could be used to find Briannas new quiz score

1.90+ (-4)
2.90+4
3.90-4
4.90-(-4)

Answer 1

Answer:

THIS IS AN EXAMPLE:

Initial score was 80. There was an accidental 5 point deduction. This means anything that gives 85 is the correct answer.

80 + 5 = 85

80 - (-5) = 85

Step-by-step explanation:

Answer 2

The option (1) 90+ (-4), and option (3) 90-4 are correct which can be used to find Briannas new quiz score.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

We have:

At first, Brianna earned a score of 90 on the quiz. She discovered that 4 had been taken off by mistake. Brianna showed the teacher, removed the 4-points deduction.

Old quiz score = 90

New quiz score = 90 -4 (after 4-points deduction)

or

New quiz score = 90 + (-4)

Thus, the option (1) 90+ (-4), and option (3) 90-4 are correct which can be used to find Briannas new quiz score.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

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