Question

Один токарь выточил у деталей, другой-на7деталей больше,чем первый,а третий-на8деталей меньше, чем второй.вместе они сделали81деталь

Answer 1

3у+7+7-8=81
3у+6=81
3у=81-6=75
у=75/3=25 выточил 1
25+7=32 выточил 2
32-8=24 выточил 3

Answer 2

Calculating the Number of Parts Machined by Each Lathe Operator

Let's calculate the number of parts machined by each lathe operator based on the given information.

1. First Lathe Operator: - Machined x parts.

2. Second Lathe Operator: - Machined (x + 7) parts.

3. Third Lathe Operator: - Machined ((x + 7) - 8) = (x - 1) parts.

Total Number of Parts Machined

The total number of parts machined by all three lathe operators is 81.

Calculating the Number of Parts Machined

Using the given information, we can form the following equation: x + (x + 7) + (x - 1) = 81

Solving for x: 3x + 6 = 81 3x = 75 x = 25

Results

1. First Lathe Operator: Machined 25 parts. 2. Second Lathe Operator: Machined 25 + 7 = 32 parts. 3. Third Lathe Operator: Machined 32 - 1 = 31 parts.

Therefore, the first lathe operator machined 25 parts, the second lathe operator machined 32 parts, and the third lathe operator machined 31 parts.