Question

Математика 7 класс. Задача- Газовая плита стоит 8100руб.включая доставку надом. Определите стоимость плиты и стоимость доставки, если стоимость доставки состовляет 8% от стоимости​

Answer 1

Ответ:

8748

Пошаговое объяснение:

8100- 100%

х- 8 %

Найдём 8 %:

8100:100= 8*х

х= 8100:100*8

х= 81*8

х=648

Вся стоимость равна: 8100+648=8748

Answer 2

Решаю: ... стоимость доставки составляет 8% от всех потраченных денег.

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8%=0,08

Чтобы найти часть (дробь) от известного числа, надо это число на дробь умножить.

1) 8 100 * 0,08=81 * 8=648 рублей стоила доставка.

2) 8 100 - 648=7 452 рубля стоит одна плита.

Ответ: 7452 и 648 рублей.

Answer 3

Problem Analysis

To solve this problem, we need to determine the cost of the gas stove and the cost of delivery. We are given that the total cost, including delivery, is 8100 rubles, and the delivery cost is 8% of the stove's cost.

Solution

Let's assume the cost of the gas stove is x rubles. According to the problem, the delivery cost is 8% of the stove's cost. Therefore, the delivery cost is 0.08x rubles.

The total cost, including delivery, is given as 8100 rubles. So we can write the equation:

x + 0.08x = 8100

Simplifying the equation:

1.08x = 8100

Dividing both sides of the equation by 1.08:

x = 8100 / 1.08

Evaluating the expression:

x ≈ 7500

Therefore, the cost of the gas stove is approximately 7500 rubles.

To find the delivery cost, we can substitute the value of x into the equation:

Delivery cost = 0.08 * 7500

Calculating the delivery cost:

Delivery cost ≈ 600

Therefore, the delivery cost is approximately 600 rubles.

Answer

The cost of the gas stove is approximately 7500 rubles, and the cost of delivery is approximately 600 rubles.

Please note that the values provided are approximate, as the exact values may vary depending on the specific calculations and rounding.