Question

Решите уравнение:1)17x -x +5x -19=170 и 2)73y-y-22 y+40=190 №494. Решите уравнение: ( X-23):26=8 №496В два магазина завезли 268 кг шимпиньонов,Причём в первый магазин завезли шампиньонов в три раза меньше,чем во второй.Сколько килограммов шампиньонов завезли в каждый магазин.?

Answer 1

x-шампиньонов в первый магазин

3x- шампиньонов во второй магазин

составим и решим уравнение

x+3x=268

4x=268

x=268/4

x=67

67(кг)-в первый магазин

67*3=201(кг)-во второй магазин

 

ответ:67кг, 201кг

Answer 2

1)

 

17x-x+5x-19=170

21x=189

x=9

 

2)

 

73y-y-22y+40=190

50y=150

y=3

 

3)

 

$\frac{x-23}{26}=8 \\x-23=8*26 \\x-23=208 \\x=208+23 \\x=231$

 

4)

 

x+3x=268

4x=268

x=67

 

67*3=201

 

Ответ: в первый магазин привезли 67 кг во второй 201

 

P.S всё верно.... это я не внимательно прочитал условие, простите... устал :)

Answer 3

Solution to Equation 1: 17x - x + 5x - 19 = 170

To solve this equation, we need to simplify and combine like terms on both sides of the equation.

17x - x + 5x - 19 = 170

Combining like terms:

(17x - x) + (5x) - 19 = 170

16x + 5x - 19 = 170

21x - 19 = 170

Next, we isolate the variable x by moving the constant term to the other side of the equation.

21x = 170 + 19

21x = 189

Finally, we solve for x by dividing both sides of the equation by 21.

x = 189 / 21

x = 9

Therefore, the solution to the equation 17x - x + 5x - 19 = 170 is x = 9.

Solution to Equation 2: 73y - y - 22 + y + 40 = 190

To solve this equation, we need to simplify and combine like terms on both sides of the equation.

73y - y - 22 + y + 40 = 190

Combining like terms:

(73y - y + y) - 22 + 40 = 190

73y - 22 + 40 = 190

73y + 18 = 190

Next, we isolate the variable y by moving the constant term to the other side of the equation.

73y = 190 - 18

73y = 172

Finally, we solve for y by dividing both sides of the equation by 73.

y = 172 / 73

y ≈ 2.36 (rounded to two decimal places)

Therefore, the solution to the equation 73y - y - 22 + y + 40 = 190 is y ≈ 2.36.

Solution to Problem: Two Stores and the Shrimps

In two stores, a total of 268 kg of mushrooms (shrimps) were delivered. The first store received three times less mushrooms than the second store. We need to find out how many kilograms of mushrooms were delivered to each store.

Let's assume that the second store received x kg of mushrooms. According to the problem, the first store received three times less, which means it received (1/3) * x kg of mushrooms.

The total weight of mushrooms delivered to both stores is 268 kg. Therefore, we can write the equation:

x + (1/3) * x = 268

To solve this equation, we need to combine like terms:

(1 + 1/3) * x = 268

(4/3) * x = 268

Next, we isolate the variable x by multiplying both sides of the equation by (3/4):

x = 268 * (3/4)

x = 201

Therefore, the second store received 201 kg of mushrooms, and the first store received (1/3) * 201 = 67 kg of mushrooms.

In summary, the second store received 201 kg of mushrooms, and the first store received 67 kg of mushrooms.