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  • 懂英文和數(shù)學(xué)的來(lái)!百分?jǐn)?shù)問(wèn)題.

    懂英文和數(shù)學(xué)的來(lái)!百分?jǐn)?shù)問(wèn)題.
    In alloy A and alloy B,there are 30% and 40% of iron in weight respectively.Now a new alloy is formed by 6 kg of alloy A and 2kg of alloy B.In the new alloy,
    (a)what is the weight of iron?
    (b)what percentage of weight is iron?
    英語(yǔ)人氣:947 ℃時(shí)間:2020-04-10 02:23:01
    優(yōu)質(zhì)解答
    a. the weight of iron: 6*30%+2*40%=2.6
    b. iron percentage of weigh: 2.6/6*100%
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