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How do u do this question I have been trying

How do u do this question I have been trying-example-1
User Vaizki
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5 votes

Answer:

A.

Explanation:

Proportionality concerns the ratio between two values, so C and D can be knocked off since they talk about difference. So that leaves us A and B. To find out if m and k are proportional, let's find the ratio between them (which means dividing them) for each set of speeds:

11.0/17.699 = 0.6215040398

26.0/41.834 = 0.6215040398

34.0/54.706 = 0.6215040398

We can see that all of the ratios return the same number, which means that the ratio of m to k is constant, so therefore the relationship is proportional, and the answer is A.

User Rtacconi
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