Question

Вес готовой детали составляет 90% от веса использованного на эту деталь металла.Сколько металла потребуется на изготовление 45 деталей весом в 1 кг

Answer 1

45кг-90%
хкг-100%
х=45*100:90
х=50кг потребуется металла

Answer 2

Calculating the Amount of Metal Required

To calculate the amount of metal required to manufacture 45 parts, we can use the fact that the weight of the finished part is 90% of the weight of the metal used to make it.

Given: - Weight of 1 finished part = 90% of the weight of the metal used - Weight of 1 finished part = 1 kg

We can calculate the weight of the metal required to manufacture 45 parts as follows:

Weight of metal required for 1 part = 1 kg / 90%

Total weight of metal required for 45 parts = (1 kg / 90%) * 45

Let's calculate the total weight of metal required for 45 parts.

Calculation

Weight of metal required for 1 part = 1 kg / 90%

Weight of metal required for 1 part = 1 kg / 0.90

Weight of metal required for 1 part = 1.1111 kg

Total weight of metal required for 45 parts = 1.1111 kg * 45

Total weight of metal required for 45 parts = 50 kg

So, to manufacture 45 parts, a total of 50 kg of metal will be required.