math

75% of the students in a class passed an exam if 2 more students had passed the exam , 80% would have been successful . how many students are there in the class.

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  1. .75x + 2 = .80x
    Now you can find x

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  2. 75/100*x+2=80/100*x

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  3. 40

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  4. can i see my test

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  5. 75/100x+2=80/100x
    3/4x+2=4/5x
    2=4/5x-3/4x
    Now take LCM of 5 and 4
    2 =16x-15x/20
    2=x/20
    Now divide two by one and x by twenty then multiply both
    X=2×20=40 students

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