Alex has some marbles. Billie has three times as many marbles are Alex. Chris has 9 fewer marbles than Billie. In total

Question

Alex has some marbles.
Billie has three times as many marbles are Alex.
Chris has 9 fewer marbles than Billie.
In total they have 68 marbles.
How many marbles does Alex have?

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Edana Edana 6 months 2021-07-18T11:50:44+00:00 1 Answers 31 views 0

Answers ( )

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    2021-07-18T11:51:54+00:00

    Answer:

    11 marbles

    Step-by-step explanation:

    Let x = no. of marbles-Alex

    3x = no. of marbles-Billie

    3x – 9 = no. of marbles-Chris

    x + 3x + 3x – 9 = 68

    7x – 9 = 68

    7x = 77

    x = 11

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