Предмет: Математика, автор: Аноним

Бригада рыбаков получила от двух банков ссуду на приобретение холодильного оборудования в размере 250000 р.: от одного под 5%, а от другого под 7% годовых. всего за год рыбаки должны уплатить 15500 руб. процентных денег. Сколько денег взято у каждого банка?    Нормально пишите решениями а не дробями)

Ответы

Автор ответа: 99tasha
0
х  - взяли в первом
у - во втором
х+у=250
0,05х+0,07у=15,5

х=250-у
0,05*(250-у)+0,07у=15,5

12,5-0,05у+0,07у=15,5
0,02у=15,5-12,5
0,02у=3
у=3:0,02
у=150 тыс.руб - взяли во втором

х=250-150=100 тыс. руб - взяли в первом
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Mackenzie Airport Welcomes First-Time Fliers!

Welcome to Mackenzie Airport, designed to get your journey off to the right start. Whether you’re flying first class, business class, or (1)_______________ class, we aim to give you efficiency and comfort. For first-time flyers, we‘ve prepared this leaflet to help you on your way.



When you arrive at the (2)________________ you’ll find plenty of (3)______________for your luggage. Once inside the spacious departure lounge there are over fifty (4)________________ where your ticket will be checked and you’ll be given a (5)_______________. Your luggage will be weighed and put on a (6)_______________ which takes it to the plane. Please note there is a weight limit and any (7)_____________ will have to be paid for. You can keep one small bag with you and take it onto the plane as (8)__________________.



You should then go through a (9)______________ to make sure you are not carrying any dangerous or illegal items and (10)_______________, where an (11)______________ will look at your passport. Now you’ll find yourself in the comfort of our modern air-conditioned (12)________________. While you’re waiting for your flight to be called, why buy some cheap (13)______________ goods - alcoholic drinks, perfume, electrical goods, or souvenirs?



Soon you’ll hear an (14)______________ or see (15)_______________ that your flight is (16)______________. It will also tell you which (17)_____________ to go to. Here you’ll be helped by a ground steward and on the plane a (18)__________ will direct you to your seat. Bon voyage!



On your return to Mackenzie Airport we try to offer the same efficient service. After you’ve passed through (19)_______________, your luggage will be waiting on the moving (20)_______________ in the (21)_______________ hall. Then pass through (22)_________________ where you should take either the (23)______________, if you have nothing to declare, or the red channel, if you have to pay (24)____________. Once inside the arrivals lounge, lifts and (25)___________ will take you to all major transport services.



On behalf of everyone at Mackenzie Airport, I wish you a very pleasant journey.​