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4 October, 23:19

Ms sharp baked 21 rays of cookies with 35 cookies on each tray if she needs to bake 840 cookies how many more trays will she need to make

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  1. 5 October, 00:15
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    35/21 = 840/x

    simplify

    5/3 = 840/x

    multiply 5 and x, 840 and 3

    5x = 2,520

    divide each side by 5 to get x alone

    x = 540 trays
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