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Angelina_Jolie [31]
3 years ago
9

On a map 2 centimeters represents 100 kilometers. How much of a centimeter represents 20 kilometers?

Mathematics
2 answers:
geniusboy [140]3 years ago
6 0
Hello!

2 centimeters = 100 kilometers
x centimeters = 20 kilometers

You can make a proportion

\frac{2}{100} =  \frac{x}{20}

<em>Cross multiply</em>

20 × 2 = 40

40 ÷ 100 = 4/10 = 2/5 = 0.4

\framebox{0.4 or 2/5 of a centimeter}
Lana71 [14]3 years ago
5 0
When 2 cm on a map represents 100 km than 4 mm represents 20 km.

When both 2 cm and 100 km are divided this becomes 0.4 cm=20 km.

0.4 cm is equal to 4 mm.
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