Seven out of every eight students surveyed owns a bike the difference between the numbers of students who own a bike and those who do not is

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Seven out of every eight students surveyed owns a bike the difference between the numbers of students who own a bike and those who do not is 72 how many students were surveyed

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Maya 1 week 2021-09-15T17:44:30+00:00 1 Answer 0

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    2021-09-15T17:46:17+00:00

    Answer:

    96 students were surveyed

    Step-by-step explanation:

    Proportions

    Variables are proportional if one of them can be obtained as the other by a constant number.

    Let’s suppose a number of x students were surveyed. Seven out of every eight students own a bike. It means that

    \frac{7}{8}x surveyed students own a bike

    \frac{1}{8}x surveyed students do not own a bike

    The difference between both quantities is

    \frac{7}{8}x-\frac{1}{8}x=\frac{6}{8}x=\frac{3}{4}x

    We know that number is 72

    \frac{3}{4}x=72

    x=96

    Answer:  96 students were surveyed (84 of them own a bike, 12 don’t)

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