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24 March, 06:31

Each hat uses 0.2 kilograms of yarn and each scarf uses 0.1 kilograms of yarn. She wants to make 3 times as many scarves as hats and use 5 kilograms of yarn

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  1. 24 March, 10:17
    0
    s = 3h

    0.2h + 0.1s = 5

    10 Hats

    30 Scarfs

    Step-by-step explanation:

    As given in the question, h = the number of hats Kaelyn makes and s = the number of scarves she makes.

    Hat = 0.2 kg of yarn

    Therefore, yarn used in Hats = 0.2h kg

    Each scarf = 0.1 kg of yarn

    Yarn used in scarfs = 0.1s kg

    i. 0.1s + 0.2h = 5

    ii. s = 3h

    Substituting equation ii into i,

    0.3h + 0.2h = 5

    0.5h = 5

    = 10

    Therefore, scarf, s = 3 * 10

    = 30

    10 Hats

    30 Scarfs
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