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AveGali [126]
3 years ago
12

Three classes have the same number of students. The teachers compared attendance on one Friday. Mr. Lopez had 92.5% of his stude

nts in the class. Mrs. Foster had 19/20 of her students in the class. In Ms. Kelly’s class, 0.9 of the students were present. Which teacher had the most students in the class that Friday?
Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Suppose the number of students in one of the classes is :

x

So ;

Mr.Lopez \:   \: had \:  \:  \frac{92.5}{100}x \\

_________________________________

Mrs.Foster \:  \: had \:  \:  \frac{19}{20} x \\

So :

Mrs.Foster \:  \: had \:  \:  \frac{19 \times 5}{20 \times 5} x \\

Mrs.Foster \:  \: had \:  \:  \frac{95}{100}x \\

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Ms.Kelly \:  \: had \:  \: 0.9x

Ms.Kelly \:  \: had \:  \:  \frac{9}{10} x \\

Ms.Kelly \:  \: had \:  \:  \frac{90}{100} x \\

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Compare :

\frac{95}{100} x >  \frac{92.5}{100} x >  \frac{90}{100} x \\

Thus :

Mrs.Foster’s  \:  \: class \:  > \: Mr.Lopez’s \:  \:  class \:  >  \: Ms.Kelly’s \:  \:  class \\

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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