Linda and Dave leave simultaneously from the same starting point biking in opposite directions. Linda bikes at 7 miles per hour and Dave bikes at 8 miles per hour. How long will it be until they are 30 miles apart from each other? Please include let x=
Added by Joaquin N.
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Since they are moving in opposite directions, their velocities will add up. So, the relative velocity is 7 mph + 8 mph = 15 mph. Show more…
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