Exercise 12 Page 151

We want to complete the given table of Marisol's quiz grades.

Test	Number Correct	Score	Total
Math	$68$		$85$
Science		$90 %$	$70$

Let's start with math. We can see that Marisol answered

68

out of

85

questions correctly. Let's start by writing her score as a fraction. We write the number of correct answers as the numerator and the total number of questions as the denominator.

\frac{6 8}{8 5}

We can simplify this fraction by dividing the numerator and the denominator by

17 .

We want to find in which class Marisol had the higher score. Let's consider the table that we completed in Part A.

Suppose that Marisol scored

96 %

on an English test that had

50

questions. We want to determine how many of the questions Marisol answered correctly. This means that we want to calculate

96 %

50 .

Let's start by writing

96 %

as a decimal.

96 % of 50

Subchapter links

Guided Practice p.150

Independent Practice p.151-152

H.O.T. Problems p.152

Standardized Test Practice p.152-154

Extra Practice p.153

Common Core Review p.154