Математика, 09.09.2019 16:00, Cirkulek999


Голодные малыш и карлсон съели торт и стали сытыми, известно что голодный карлсон легче сытого малыша, а сытый карлсон имеет такой же вес как два голодных малыша, чья масса больше торта или голодного малыша?

Ответы на вопрос

Ответ разместил: Гость
Прошел 5.6 пешком, и 12.6 на автобусе. тогда все расстояние будет равно 5.6+12.6 = 18.2 тогда на автобусе он проехал в 12.6/5.6 = 2.25 раза. пусть весь путь 18.6 км - 100%, а время на автобусе 12.6 - x. тогда по методу пропорции x = (12.6*100%)/18.2; x = 69.2%
Ответ разместил: Гость
Пусть за синюю заплатили х руб, тогда за красную ткань заплатили 5х, а за зелёную (х + 76) руб. так как вся покупка стоила 1000 рублей, то х + 5х + х+ 76 = 1000; 7х = 1000 - 76; 7х = 924; х = 924 : 7; х = 132 (руб) заплатили за синюю ткань; 132 * 5 = 660 (руб) заплатили за красную ткань; 132 + 76 = 208 (руб) заплатили за зелёную ткань;
Ответ разместил: Гость
1)27-22=5 мин больше читал ваня 2)15: 5=3 общая производительность 3)22×3=66 слов 4)27×3=81 слово
Ответ разместил: vitalytubvitalnru

т-масса торта

м-маса голодного малыша

к-маса голодного карлсона

к< м+т



м+м-т< м+т

м< 2*т 

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