Question

Для школы купили 5 мотков электрического провода по 56 метров в каждом.Израсходовали две седьмых части всего провода.Сколько метров провода осталось?

Answer 1

Вот смотри:
1) 5 мотков *56 метро=280 метров всего
2) 280 делим на 7 частей= 40 метров каждая часть
3) 40 метров * 2 части= 80 метров израсходовали
4) 280-80=200 метров осталось

Answer 2

1)56*5=280
2)280-2/7=279 5/7

Answer 3

Calculation of Remaining Wire Length

To calculate the remaining wire length, we need to determine the total length of the wire and then subtract the length that has been used.

Given: - 5 rolls of wire, each containing 56 meters of wire

Total length of wire = 5 rolls * 56 meters/roll = 280 meters The question states that two-sevenths of the total wire length has been used. To find the length that has been used, we can calculate:

Length used = (2/7) * Total length of wire = (2/7) * 280 meters = 80 meters

To find the remaining wire length, we subtract the length used from the total length of wire:

Remaining wire length = Total length of wire - Length used = 280 meters - 80 meters = 200 meters

Therefore, there are 200 meters of wire remaining.

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