gamerdoesart
01.09.2020 •
Mathematics
11. The shadow of a 10 m high pole is 6 metres. Find
the shadow of a 15 m high pole at the same time
of the day.
Solved
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Ответ:
25m
Step-by-step explanation:
10/6 = length of shadow per metre of pole
so 15 x 10/6 = shadow of 15m high pole
150/6 = 25m
Ответ:
x=-15
Step-by-step explanation:
8+9.8x+9=3.8x-16+3.8x
8+9=17
17+9.8x=7.6x-16
-7.6x -7.6x
17+2.2x=-16
-17 . -17
-16-17= -33
2.2x=-33
/2.2 /2.2
x=-15