Question

Стоимость девяти мотков пряжи на 450 рублей больше,чем стоимость 6 мотков этой пряжи. На костюм нужно 30 мотков пряжи. Сколько это будет стоить?

Answer 1

1) 9- 6 = 3 мотка разница

2) 450 : 3 = 150 рублей стоит 1 моток

3) 150 х 30 =4500 рублей стоит 30 мотков пряжи

Answer 2

Calculating the Cost of Yarn for a Suit

To calculate the cost of 30 skeins of yarn for a suit, we can use the given information about the cost of 9 skeins being 450 rubles more than the cost of 6 skeins.

Given: - Cost of 9 skeins = Cost of 6 skeins + 450 rubles - Cost of suit = 30 skeins

Calculation

Let's denote the cost of 6 skeins as x rubles. Then, the cost of 9 skeins would be (x + 450) rubles.

So, the cost of 1 skein would be: (x + 450) / 9

And the total cost for 30 skeins would be: 30 * (x + 450) / 9

Final Cost

By substituting the given values, we can calculate the final cost of 30 skeins of yarn for the suit.