3 years ago

There are 28 students in math class, and 22 of the students passed a recent test. What percentage passed the test?

Mathematics

2 answers:

marshall27 [118]3 years ago

8 0

22/28 = .7857. Move decimal 2 positions to the right. 78.57 % passed

snow_lady [41]3 years ago

3 0

28 represents 100%
22 represents x %
X= 22•100/28=78.57142857%

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docker41 [41]

let's firstly, convert the mixed fraction to improper fraction, and then subtract.

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\rule{34em}{0.25pt}\\\\
\cfrac{11}{4}-\cfrac{2}{3}\implies \stackrel{\textit{our LCD will be 12}}{\cfrac{(3)11-(4)2}{12}}\implies \cfrac{33-8}{12}\implies \cfrac{25}{12}\implies 2\frac{1}{12}$