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rileypenguin
Olga ran 5 kilometers in 37 minutes. Which could Olga use to determine m, the number of minutes she would take to run 25 kilometers at this rate?
Try to use proportion.
http://www.bbc.co.uk/schools/gcsebitesize/maths/algebra/proportionhirev1.shtml
Try use fractions and keep in mind that you should have km over km and time over time. See the link above and try to use direct proportion.