Question

В магазине продали 45пар детской и взрослой обуви на сумму 912 манат . пара детской обуви стоит 18 манат, а взрослой 24 маната. сколько пар детской и сколько пар взрослой обуви было продано в магазине.

Answer 1

Пусть детской обуви продали х пар
Тогда взрослой у пар
{Х+у=45 ; х=45-у
{18х+24у=912
18(45-у)+24у=912
810-18у+24у=912
6у=102
у=17 это взрослая обувь
Тола детская равна
Х=45-у=45-17=28 пар
Проверка:
28*18+17*24=504+408=912 - верно
Ответ: детской обуви 28 пар, взрослой 17 пар

Answer 2

Calculation of the Number of Pairs of Children's and Adult Shoes Sold

To determine the number of pairs of children's and adult shoes sold in the store, we can use the given information about the total number of pairs sold and their respective prices.

Let's assume the number of pairs of children's shoes sold is represented by x, and the number of pairs of adult shoes sold is represented by y.

According to the given information: - The total number of pairs sold is 45. - The total amount of money earned from the sales is 912 manat. - The price of a pair of children's shoes is 18 manat. - The price of a pair of adult shoes is 24 manat.

We can set up the following equations based on the given information:

Equation 1: x + y = 45 (the total number of pairs sold is 45) Equation 2: 18x + 24y = 912 (the total amount earned from the sales is 912 manat)

To solve this system of equations, we can use substitution or elimination method. Let's use the elimination method:

Multiplying Equation 1 by 18, we get: 18x + 18y = 810

Subtracting this equation from Equation 2, we can eliminate the variable x: 18x + 24y - (18x + 18y) = 912 - 810 6y = 102 y = 17

Substituting the value of y into Equation 1, we can find the value of x: x + 17 = 45 x = 45 - 17 x = 28

Therefore, 28 pairs of children's shoes and 17 pairs of adult shoes were sold in the store.

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