Homework Help: Math [urgent]

Posted by Jessica on Thursday, September 24, 2009 at 9:50am.

1. The sum of three numbers is 301. The second number is 3 less than twelve times the first number. The third number is 4 more than seven times the number. Find the three numbers.

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2. Two friends live 15 miles apart. One day they decide to jog and meet each other. Tanya leaves her house and heads east, jogging at a rate of 2.5 miles per hour. At the same time Kelly leaves her house and heads west, jogging at a rate of 3.5 miles per hour. How long does it take for the two friends to meet?

Please help me out with these word problems. Thanks a lot!

Math [urgent] - PsyDAG, Thursday, September 24, 2009 at 10:46am
1. First number = x, second number = 12x - 3, and if the third number is being compared to the first, it = 7x + 4. The sum of these = 301. Solve for x.

2. 15 = 2.5x + 3.5x
Solve for x.

I hope this helps. Thanks for asking.
Math [urgent] - PsyDAG, Thursday, September 24, 2009 at 10:47am
1. First number = x, second number = 12x - 3, and if the third number is being compared to the first, it = 7x + 4. The sum of these = 301. Solve for x.

2. 15 = 2.5x + 3.5x
Solve for x.

I hope this helps. Thanks for asking.

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