KariSupreme
30.10.2021 •
Mathematics
Which of the could be the first step to 4-3(x+6)-28?
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Ответ:
Distribute -3 into the parentheses
so it should look like this:
4-3x-18-28
Ответ:
-3(14+x)
Step-by-step explanation:
Ответ:
600 m
Step-by-step explanation:
Sol a : Imagine we have measured a distance as 1.5 cm on this map, and we want to find out how far this is in real life.
To work out the distance in real life, we need to multiply this length by 40,000.
This gives 1.5 cm × 40,000 = 60,000 cm which is 600 m or 0.6 km.
Sol b : Alternatively, we could have just remembered that each 1 cm on the map is 0.4 km in real life.
Hence, 1.5 cm on the map must be 1.5 × 0.4 km = 0.6 km in real life.