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December 20, 2014

December 20, 2014

Posted by **zamarra** on Tuesday, January 15, 2013 at 12:33am.

- algebra 1 -
**Steve**, Tuesday, January 15, 2013 at 12:11pmif he drove x hours, his speed was x+48

distance = speed * time, so

(x+48)(x) = 208

x^2 + 48x - 208 = 0

(x-4)(x+52)

x=4

so, he drove 52 mph for 4 hours

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