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18.10.2019 •
Mathematics
What is -1/2b+9=5 worked out and also answer
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Ответ:
in this case subtract 9 from both sides
-1/2b= -4
divide by number next to variable
b = 8
Ответ:
1.8 km
Step-by-step explanation:
The scale on the map is 1 : 15000.
This means that every 1 cm on the map is equal to 15000 cm on the ground.
12 cm on the map will therefore be:
12 * 15000 = 180000 cm
Let us convert to kilometres:
100000 cm = 1 km
180000 cm = 180000 / 100000 = 1.8 km
12 cm on the map will be 1.8 km on the ground.