70% of the magic tricks that Jade knows are card tricks. If she knows 14 card tricks, how many magic tricks does Jade know in all?

Question

70% of the magic tricks that Jade knows are card tricks. If she knows 14 card tricks, how many magic tricks does Jade know in all?

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Minh Khuê 1 year 2021-09-02T06:58:55+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-09-02T07:00:24+00:00

    Answer:

    20

    Step-by-step explanation:

    Given data

    Let the number of magic tricks be x

    we are told that she knows 70% of card trick which is 14 card tricks

    hence we have

    70/100*x= 14

    0.7x= 14

    x= 14/0.7

    x=20

    Hence the number of magic tricks she knows is 20

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