Question

1.Корень уравнения 5y+6y-14=217 равен.... 2. Одна бригада за 5 дней убирает урожай с 60 га, а второй для этого потребуется на 1 день больше. С какой площади смогут убрать урожай эти бригады за 4 дня, при совместной работе?

Answer 1

1)11у=217+14
11у=231
у=21

Answer 2

1. To find the value of the root of the equation 5y + 6y - 14 = 217, we need to solve for y.

Combining like terms, we have 11y - 14 = 217.

Adding 14 to both sides of the equation, we get 11y = 231.

Finally, dividing both sides by 11, we find that y = 21.

Therefore, the root of the equation 5y + 6y - 14 = 217 is y = 21.

2. Let's assume that the first brigade can harvest the crop from 60 hectares in 5 days.

This means that the first brigade can harvest 12 hectares per day (60 hectares divided by 5 days).

The second brigade takes 1 day longer to harvest the same amount of crop.

So, the second brigade can harvest the crop from 60 hectares in 6 days.

This means that the second brigade can harvest 10 hectares per day (60 hectares divided by 6 days).

To find out how much area they can harvest together in 4 days, we need to calculate their combined daily harvest rate.

The combined daily harvest rate is the sum of their individual daily harvest rates.

So, the combined daily harvest rate is 12 hectares per day + 10 hectares per day = 22 hectares per day.

Multiplying the combined daily harvest rate by 4 days, we find that the two brigades can harvest a total of 88 hectares in 4 days when working together.

Therefore, when working together, these brigades can harvest a total area of 88 hectares in 4 days.