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Pachacha [2.7K]
4 years ago
7

A map has a scale of 2cm to 5km. How long is a path that measure 0.8 on the map?

Mathematics
2 answers:
balandron [24]4 years ago
5 0

Answer:

2 km

Step-by-step explanation:

To use the scale, we write a ratio of \frac{map}{real world} and simplify.

We know \frac{map}{real world}=\frac{2cm}{5 kilometers}.

We also know the path is \frac{0.8cm}{x kilometers}.

To find the unknown value, we set the ratios equal and solve by ross multiplying.

\frac{0.8cm}{x kilometers}=\frac{2cm}{5 kilometers}.

We cross multiply by multiplying numerator and denominator of opposite fractions.

0.8(5)=x(2)

4=2x

2=x

allochka39001 [22]4 years ago
4 0

Your answer would be 2km.


We can write the scale as a ratio of 2cm:5km. Then we need to find out how much we multiply 2 by to get 0.8cm, by dividing 0.8 by 2. This gives us 0.4.


Then, we can multiply 0.4 by 5 on the other side of the ratio, to get the ratio as 0.8:2, so 2km is your answer.


I hope this helps!

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