Предмет: Математика, автор: tarakanovvladis

длинна отрезка 4.5 км. чему ровна длина этого отрезка на карте, сделанной в масштабе 1:1000000
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Ответы

Автор ответа: anmih
0
1 : 1000000 это означает, что в 1 см на карте лежат 1000000 см  на местности; 1000000 см = 10000 м = 10 км 

10 км - 1 см
4,5 км - х см 
прямая зависимость

10 / 4,5 = 1/х
10 х = 4,5 * 1
10 х = 4,5
х= 4,5 : 10
х= 0,45 см на карте 
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