Homework Help: Math

Posted by hip hop chic on Monday, August 29, 2005 at 5:22pm.

I need help on two problems I would like if you went step by step with the problem with me and then let me figure out the answer.

If, Tonya and Toya have $15.25 together and Tonya had 25 cents more than Toya, how much does each have?

Second question:

Bruce is 7 years older than his sister Pilar. The sum of their ages is 1 less than 3 times Pilar's age. How old is each.

Show equations for both

First problem:
X1 + X2 = 15.25
X1 - X2 = 0.25
2 X1 = 15.50
X1 = 7.75
X2 = X1 - 0.25 = 7.50

Second problem:
B - P = 7
B + P = 3P -1
B - 2P = -1
P = 8
B = P+7 = 15

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