Question

На складе было 350 метров ткани. Сначала израсходовали 2/7 всей ткани, потом 2/5 остатка. Сколько метров ткани осталось на складе? НАПИШИТЕ РЕШЕНИЕ ПОЖАЛУЙСТА СРОЧНО НАДО!!!!!!!!!

Answer 1

350*2/7=100 м в первый день
350-100=250 м осталось
250*2/5=100 м во второй день
350-100-100=150 м осталось на складе
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Answer 2

350*2/7=100
350-100=250
250*2/5=100
250-100=150 (м) ткани осталось

Answer 3

Problem Analysis

We are given that there were initially 350 meters of fabric on the warehouse. First, 2/7 of the total fabric was used, and then 2/5 of the remaining fabric was used. We need to find out how many meters of fabric are left in the warehouse.

Solution

To solve this problem, we will follow these steps: 1. Calculate the amount of fabric used in the first step. 2. Calculate the remaining fabric after the first step. 3. Calculate the amount of fabric used in the second step. 4. Calculate the final amount of fabric remaining in the warehouse.

Let's calculate each step one by one.

Step 1: Calculate the amount of fabric used in the first step. The first step involves using 2/7 of the total fabric. Amount of fabric used in the first step = (2/7) * 350 meters.

Step 2: Calculate the remaining fabric after the first step. To find the remaining fabric, we subtract the amount used in the first step from the total fabric. Remaining fabric after the first step = 350 meters - (2/7) * 350 meters.

Step 3: Calculate the amount of fabric used in the second step. The second step involves using 2/5 of the remaining fabric after the first step. Amount of fabric used in the second step = (2/5) * (350 meters - (2/7) * 350 meters).

Step 4: Calculate the final amount of fabric remaining in the warehouse. To find the final amount of fabric remaining, we subtract the amount used in the second step from the remaining fabric after the first step. Final amount of fabric remaining = Remaining fabric after the first step - Amount of fabric used in the second step.

Let's calculate the values.

Step 1: Calculate the amount of fabric used in the first step. Amount of fabric used in the first step = (2/7) * 350 meters = 100 meters.

Step 2: Calculate the remaining fabric after the first step. Remaining fabric after the first step = 350 meters - (2/7) * 350 meters = 250 meters.

Step 3: Calculate the amount of fabric used in the second step. Amount of fabric used in the second step = (2/5) * (350 meters - (2/7) * 350 meters) = 80 meters.

Step 4: Calculate the final amount of fabric remaining in the warehouse. Final amount of fabric remaining = Remaining fabric after the first step - Amount of fabric used in the second step = 250 meters - 80 meters = 170 meters.

Therefore, there are 170 meters of fabric remaining in the warehouse.

Answer

There are 170 meters of fabric remaining on the warehouse.