document.write( "Question 458690: David got in his '29 Ford and started driving west from Florida at a constant speed of 30 miles per hour. An hour later Anna got in her '31 Buick and started driving west from Florida at a constant speed. After driving 4 hours Anna had passed David and was 10 miles ahead of him. How fast was Anna driving?\r
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Algebra.Com's Answer #314655 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
4x=30*5+10
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