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anonymous

  • one year ago

Anna surveyed 50 students at her school and found that 0.72 of the students she surveyed said their favorite class is math. Another 12% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science? 6 30 36 42

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  1. anonymous
    • one year ago
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    I say 6

  2. anonymous
    • one year ago
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    but why?

  3. anonymous
    • one year ago
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    @jim_thompson5910

  4. anonymous
    • one year ago
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    0.72 is pretty much 72%, so multiply .72 and 50

  5. jim_thompson5910
    • one year ago
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    Take 72% of 50. Call this result x Take 12% of 50. Call this result y Subtract: x - y = ??

  6. anonymous
    • one year ago
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    then multiply .12 and 50

  7. anonymous
    • one year ago
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    what do you get?

  8. anonymous
    • one year ago
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    600

  9. anonymous
    • one year ago
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    try again, .72*50 and .12*50

  10. anonymous
    • one year ago
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    36 - 6 = 30

  11. anonymous
    • one year ago
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    ohh my bad

  12. anonymous
    • one year ago
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    Yes!! you are correct

  13. jim_thompson5910
    • one year ago
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    correct @beckyg111 @babykel you forgot the decimal

  14. anonymous
    • one year ago
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    oh sorry >_<

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