На двух огородах общей площадью 100 кв. м высадили кусты помидоров. на каждом квадратном метре высаживали одинаковое количество кустов помидоров. на одном огороде посадили 480 кустов, а на другом - 320 кустов. чему равна площадь каждого огорода?

1)480+320=800(кустов) 2)800: 100=8(к/квад.метр) 3)480: 8=60(квад.метров) 4)320: 8=40(квад.метров)

Пусть х кустов сажали на 1-ом м^2 участков, тогда 480/х -это площадь 1-го уч-ка, а 320/х -это площадь 2-го участка. по усл. составляем ур-ние: 480/х + 320/х = 100 100х=800 х=8 (кустов сажали на 1м^2) 480/8 =60 320/8=40 ответ: 60м^2 - площадь 1-го уч-ка, 40м^2 - площадь 2-го участка

Maybe your home is already living some kind of animal such as a dog. or do you really want parents gave you a fish or a parrot. how cozy to read a book when there on the couch sleeping, curled up cat! together with people have been living cows and goats, rabbits and geese, horses and dogs. we love them, care about them and they in return give us a lot of good. we call them pets. but what a pity, you say that you cannot befriend a wild animal! i'd like to walk down the street with a lion or tiger! why wild animals don't get along with the person? yes, now don't get along, but it was not always so. once upon a time god created the first people — adam and eve, they lived in the garden of eden among the magnificent trees and herbs. next to them lived animals. people and animals lived in harmony, understand each other's language. but the people disobeyed god, and this order was broken. was not in the soul of man of the world — and the animals ceased to love and obey him. they fled from man. strong animals are at enmity with him, and the weak run away and hide. only domestic animals continue to obey the man.

1)4(x-3)-3(x+2)=-19     4x-12-3x-6=-19     x-18=-19     x=-19+18     x=-1 2)2,5(4-2x)-5(1-3x)=5     10-5x-4+15x=5     5+10x=5     10x=0       x=0 3)-5(7-x)-4(x-8)=3     -35+5x-4x+32=3     -3+x=3       x=3+3       x=6 4)2/3(3x-1)-1/9(9x-9/4)=1/4     2x-2/3-x+1/4=1/4     2x-2/3-x=0     x-2/3=0     3x-3×2/3=3×0     3x-2=0     3x=2     x=2/3