Question

В период распродажи магазин снижал цены дважды: в первый раз на 45%, во второй -20% .Сколько рублей стал стоить ранец после второго снижения цен,если до начала распродажи он стоил 700р.?

Answer 1

1000 делим на сто и умножаем на пятьдесят пять (100 -45) получается550
чтобы "снести" от этого 50% достаточна поделить на два 550\2= 225 это и есть ответ

Answer 2

Calculating the Final Price After Two Discounts

To calculate the final price of the backpack after the two discounts, we can use the following steps:

1. Calculate the price after the first discount of 45%. 2. Calculate the price after the second discount of 20% based on the price after the first discount.

Let's proceed with the calculations.

Step 1: Calculate the Price After the First Discount of 45%

The first discount reduces the original price of the backpack by 45%. We can calculate the price after the first discount using the following formula: \[ \text{Price after first discount} = \text{Original price} - (\text{Original price} \times 0.45) \]

Using the original price of 700 rubles: \[ \text{Price after first discount} = 700 - (700 \times 0.45) = 700 - 315 = 385 \text{ rubles} \]

Step 2: Calculate the Price After the Second Discount of 20%

The second discount of 20% is applied to the price after the first discount. We can calculate the price after the second discount using the following formula: \[ \text{Price after second discount} = \text{Price after first discount} - (\text{Price after first discount} \times 0.20) \]

Using the price after the first discount (385 rubles): \[ \text{Price after second discount} = 385 - (385 \times 0.20) = 385 - 77 = 308 \text{ rubles} \]

Therefore, the final price of the backpack after the second discount is 308 rubles.

I hope this helps! If you have any further questions, feel free to ask.