Grades in a Classroom Are Often Given According to the Percentage

question 115

Multiple Choice

Grades in a classroom are often given according to the percentage score obtained by the student. Suppose that a teacher grades according to the following scheme, where all scores are rounded to the nearest percent: A $\quad 90 \% - 100 \%$
B $80 \% - 89 \%$
C $65 \% - 79 \%$
D $50 \% - 64 \%$
$\mathrm { F } \quad 0 \% - 49 \%$ To determine a percent grade, form a ratio of score received to possible score and then write this ratio as a percent. Calculate the percent (nearest percent) and determine the letter grade for each score. The student gets 91 answers right out of a possible 100. What is the letter grade?

• A) A
• B) F
• C) C
• D) B
• E) D

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Definitions:

Simplify

To reduce a mathematical expression to its simplest form by performing operations and combining like terms.

Evaluate

The process of calculating the value of an expression.

Simplify

To simplify an expression means to reduce it to its simplest form, by performing all possible operations and combining like terms.

Evaluate

To calculate the value of an expression by substituting variables with given numerical values and performing the operations in the expression.