document.write( "Question 1036105: Here's my question:
\n" ); document.write( "Pearly and Peggy Sue left their dorm room at the same time and headed in opposite directions. After 9 hours, they were 1,080 miles apart. If Pearly drove 20mph faster than Peggy Sue, how fast did Peggy Sue drive?\r
\n" ); document.write( "\n" ); document.write( "I think the formula is $\"+9x%2B%289x%2B20%29=1%2C080+\"$ Is this right? If not, how do I do it? \n" ); document.write( "

Algebra.Com's Answer #650716 by MathTherapy(10552) $\"\"$ $\"About$

You can put this solution on YOUR website!
Here's my question:
\n" ); document.write( "Pearly and Peggy Sue left their dorm room at the same time and headed in opposite directions. After 9 hours, they were 1,080 miles apart. If Pearly drove 20mph faster than Peggy Sue, how fast did Peggy Sue drive?\r
\n" ); document.write( "\n" ); document.write( "I think the formula is $\"+9x%2B%289x%2B20%29=1%2C080+\"$ Is this right? If not, how do I do it?
\n" ); document.write( "

How did you get 9x? Isn't that the DISTANCE (times * speed) traveled by Peggy in 9 hours?
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document.write( "How did I get 9(x + 20)? Isn't that the DISTANCE (times * speed) traveled by Pearly in 9 hours?
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document.write( "When you add these 2 distances (Peggy's and Pearly's), what should they total? Shouldn't the 2 distances sum to the distance they are apart? Of course!! 
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document.write( "Therefore, you should get: , instead of 9x + (9x + 20) = 1 \n" );
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