Question

Банка с медом весит 500 граммов. Та же банка с керосином весит 350 граммов.Керосин легче меда в 2 раза.Сколько весит пустая банка?

Answer 1

Можно составить уравнение с x, где x - вес банки
500 - x = 2*(350 - x)
500 - x = 700 - 2x
x + 500 = 700
x = 200

Answer 2

Пусть вес банки b, а мед m,тогда b+m=500,    k вес керосина, тогда b+k=350 тк керосин в 2 раза легче, то m=2k получаем систему
$\left \{ {{b+2k=500} \atop {b+k=350}} \right.$
k=150  b=200
вес банки 200г

Answer 3

Calculation of the Weight of the Empty Jar

To find the weight of the empty jar, we need to subtract the weight of the honey and the weight of the kerosene from the total weight of the jar.

Given: - Weight of the jar with honey = 500 grams - Weight of the jar with kerosene = 350 grams - Kerosene is lighter than honey by a factor of 2

Let's calculate the weight of the empty jar step by step:

1. Calculate the weight of the kerosene: - Since kerosene is lighter than honey by a factor of 2, the weight of the kerosene can be calculated as half the weight of the honey. - Weight of the kerosene = (Weight of the honey) / 2 = 500 grams / 2 = 250 grams.

2. Calculate the weight of the empty jar: - Weight of the empty jar = (Weight of the jar with honey) - (Weight of the honey) - (Weight of the kerosene) - Weight of the empty jar = 500 grams - 500 grams - 250 grams = -250 grams

Based on the calculations, the weight of the empty jar is -250 grams. However, this result seems incorrect as the weight of an empty jar cannot be negative. It is possible that there is an error in the given information or in the calculations.

Please double-check the provided information and calculations to ensure accuracy.