Question

1) 4,2y+0,95=2,7y-59,8 2) В автобусном парке 12% всех автомобилей составляют "Мерседесы", а 3-11(дробь) - "Икарусы". Сколько "Икарусов" в автобусном парке, если 'Мерседесов" 33?​

Answer 1

Ответ:

Пошаговое объяснение:

4.2у-2.7у=-59.8-0.95

1.5у=-60.75

у=-60.75:1.5

у=-40.5

1)33*100:12=275 всего. автомобилей

2)275:11*3=75 - икарусов.

Answer 2

1. To solve the equation 4 + 2y + 0.95 = 2.7y - 59.8, we can start by simplifying the equation:

Combine like terms: 4 + 0.95 = 2.7y - 2y - 59.8 4.95 = 0.7y - 59.8

Next, isolate the variable y: 0.7y = 4.95 + 59.8 0.7y = 64.75

Finally, solve for y by dividing both sides of the equation by 0.7: y = 64.75 / 0.7 y ≈ 92.5

Therefore, the solution to the equation is y ≈ 92.5.

2. Let's solve the second problem:

Let's assume the total number of buses in the bus park is represented by x.

Given that 12% of all cars are "Mercedes" and the number of "Mercedes" cars is 33, we can set up the equation:

0.12x = 33

To find the number of "Ikarus" cars, we need to subtract the percentage of "Mercedes" cars from 100% and convert it to a decimal:

1 - 0.12 = 0.88

So, "Ikarus" cars make up 88% of all cars.

Now, we can set up the equation to find the number of "Ikarus" cars:

0.88x = the number of "Ikarus" cars

Since we know the number of "Mercedes" cars is 33, we can substitute it into the equation:

0.88x = 33

To solve for x, divide both sides of the equation by 0.88:

x = 33 / 0.88 x ≈ 37.5

Therefore, the total number of cars in the bus park is approximately 37.5.

To find the number of "Ikarus" cars, multiply the total number of cars by the percentage of "Ikarus" cars:

0.88 * 37.5 ≈ 33

So, there are approximately 33 "Ikarus" cars in the bus park.