Предмет: Математика, автор: LenaVolkova505

Известно ,что 20% числа а равны 30%числа b . Найти отношение a к b

Ответы

Автор ответа: Platinum15
12
переведем проценты в доли:
0.2 а = 0.3 b
a = 0.3/0.2 b
a = 1.5 b
a/b = 1.5
Похожие вопросы
Предмет: Английский язык, автор: roovik13
Fill in the correct form.

1. Jack is a very ____________ learner. (quick)
2. The language school is ___________ organized. (efficient)
3. I’ve got to go to the dentist. My tooth is aching _________ . (terrible)
4. Don’t talk so ____________ . (loud)
5. Temperatures are going to be very ___________ today. (high)
6. If you want me to work ___________ , you’ll have to pay me more. (hard)
7. We’ll come back again because we had a __________ time. (lovely)
8. The house is rather ____________ but Joan has decorated it _________ . (simple, beautiful)
9. You have been behaving very ___________ since you arrived. (foolish)
10. Rick is a _____________ cook. He can _________ really well. (good, good)
11. John is a ______________ worker and he _________ ever takes a day off. (hard, hard)
12. Have the children behaved ___________ today? (good)
13. I wish I could swim ___________ . (fast)
14. He closed the door ____________ . (angry)
15. Can’t we discuss these problems ___________ ? (reasonable)
16. Good computers have been getting quite __________ __________ .(cheap,recent)
17. She always says that she is very ___________ woman. (lonely)
18. They come from ____________ parts of the world. (differen t)
19. They sell _____________ clothes in the department store. (cheap)
20. The food was _____________ but the service was ________ . (wonderful, awful)
21. We have had some ________ _________ discussions _________.(absolute, fascinating, late)
22. I have had an __________ headache, so could you please be ________ ? (awful, quiet)
23. My sister has been in Spain for only a year but she speaks Spanish ________ . (perfect)
24. David ran as _____________ as he could but he still arrived _______ . (fast, late)