Gọi số cần tìm là : ab.

- Số chia hết cho 5 có tận cùng là 0 và 5.

- Số chia hết cho 2 có tận cùng là: 0;2;4;6;8.

Mà số chia hết cho cả 2 và 5 có tận cùng là 0.

Ta có dạng : a0.

Mà số chia hết cho 3 có tổng chia hết cho 3.

Ta có: 2 x 3 x 5= 30.

Các số đó là bội của 30.

Vậy các số cần tìm là: 30;60;90.

Tick mk nha!

Suy ra: Ta có: a =

Can đó có số lít xăng là:

30 x \(\dfrac{4}{5}\)= \(\dfrac{120}{5}\)= 24 ( lít xăng )

Đáp số: 24 lít xăng.

Tick mk nha!

2x-(x+2)=10

2x-x-2-10=0

x-12=0

x=12

Tick mk nhé!

1. You have a great influence on the young generation: As a teacher you have the opportunity to communicate and educate hundreds of young people. You are the one who directly molds children from early toddler days. So ask anyone who is the most influential person for a child? And the chances you hear the most are the teachers.

2. You are an actor, a rhetorician, a storyteller and a professional organizer: As a teacher you will have to take on all the above and even more. You will have the opportunity to face many challenges. You have to inspire, guide and entertain the children through the activities and experiences that they have experienced. In a day on the podium you have to show the ability to organize, plan, train and play.

3. Teaching is a very meaningful job: If you are looking for a job that brings joy, sublimation to you, the profession will give you all that feeling. Do not just teach things in books, direct them to do the right thing ... As a teacher, you also get help and education for young people in society as well as when you train a person Labor for the future.

4. Always cultivate, learn: "Study, learn, study forever" is the motto of those who love teaching. Knowledge is endless and therefore teachers, who need to cultivate, train and learn new things, new teaching methods through books or classes for teaching staff to not fall Back to the education of countries around the world. So they have the capacity to support future generations of the country.

Everyone respects and loves the teacher: If you are a teacher, you can be proud and proud to talk about your career. Teachers are beloved, respected for many reasons and perhaps the reason they are most admired is the patience, the ability to control and communicate to dozens of people. And for all the reasons we had on November 20th (Teacher's Day Vietnam) to express our gratitude as well as the merit of our teachers.

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