trong tháng giêng hai tổ công nhân may được 800 chiếc áo. tháng hai, tổ 1 vượt mức 15%, tổ hai vượt mức 20% do đó cả hai tổ sản xuất được 945 cái áo. tính xem trong tháng đầu mỗi tổ may được bao nhiêu...

To solve this problem, we can set up a system of equations based on the given information. Let's denote: - The number of shirts produced by team 1 in the first month as $$. - The number of shirts produced by team 2 in the first month as $$. From the given information, we have the following equations: $$ We can solve this system of equations to find the values of $$ and $$. First, let's solve equation (1) for $$: $$ Now substitute this expression for $$ into equation (2): $$ $$ $$ $$ So, the number of shirts produced by team 1 in the first month is $$. Now, substitute this value of $$ back into equation (1) to find the value of $$: $$ So, the number of shirts produced by team 2 in the first month is $$.