Girl on Bicycle changing speeds?

  • Thread starter Thread starter friendoftheend
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friendoftheend

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ahh another question that I don't remember how to do. Could just use some help setting it up..

Lynn traveled 60 Km on her bicycle in 2 hours. She traveled at 35 Km per hour except when going up a steep mountain pass where her speed dropped to 20 Km per hour. How many kilometers did she travel at 35 Km per hour?
 
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