I drove to the beach at a rate of $40$ miles per hour. If I had driven at a rate of $55$ miles per hour instead, then I would have arrived $25$ minutes earlier. How many miles did I drive?
How many miles did I drive?
s=40mph⋅t=55mph⋅(t−2560h)40mph⋅t=55mph⋅t−55mph⋅2560h(55−40)mph⋅t=55mph⋅2560ht=55⋅2560h15t=1.52¯7h
s=40mph⋅1.52¯7hs=6119 miles6119 miles dit i drive.
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