Question

В швейной мастерской было 12 кусков материи по 40 м в каждом и 8 кусков материи по 30 м в каждом .Сколько метров материи осталось после того ,как израсходовали 340 м ?

Answer 1

12 * 40 + 8 * 30 = 720 метров материи - было.
720 - 340 = 380 метров материи - осталось.

Ответ: 380 метров материи осталось.

Удачи)

Answer 2

Calculation of Remaining Fabric

To calculate the amount of fabric remaining after using 340 meters, we need to subtract the amount used from the total amount of fabric available.

Given: - 12 pieces of fabric, each measuring 40 meters - 8 pieces of fabric, each measuring 30 meters

Total fabric available: - 12 pieces * 40 meters/piece = 480 meters - 8 pieces * 30 meters/piece = 240 meters

Total fabric available = 480 meters + 240 meters = 720 meters

Amount of fabric used = 340 meters

Remaining fabric = Total fabric available - Amount of fabric used Remaining fabric = 720 meters - 340 meters Remaining fabric = 380 meters

Therefore, 380 meters of fabric will be left after using 340 meters.