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4 years ago

it will take 4 minutes for their drone to fly 7 kilometers. How long will it take the drone to fly 21 kilometers?

Mathematics

2 answers:

Studentka2010 [4]4 years ago

8 0

Answer:

12 minutes

Step-by-step explanation:

4 minutes= 7 kilometers

=> 4*3 minutes= 7*3 kilometers

=12minutes=21km

marishachu [46]4 years ago

3 0

Answer:

12 minutes

Step-by-step explanation:

You have to think about this as if it were a fraction where it is

4 minutes x minutes

------------------ and -----------------

7 kilometres 21 kilometres

As you can see on the bottom row you can divide the 21 kilometres and the 7 kilometres to see what it took to get there and if you were to do that it would be 3. So now that we have the 3 we are going to multiply that by the 4 minutes so that we can see how many minutes it would take for 21 kilometres and the answer is...

3 x 4 = 12

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