10-09-2008, 08:30 PM
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#1 |
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Lieutenant
 
Join Date: Apr 2001
Location: So. San Francisco
Posts: 203
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Algebra Homework Help
My niece needs some help with her algebra homework and I have no clue. Here is the algebra question she sent me. Can a math wiz help us out. THANKS!
------------ You have to right an equation to solve Two thirds of a number is 3 and 1/2 more than three eighths of the number find the number |
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10-09-2008, 09:25 PM
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#2 |
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Lieutenant Commander
 Join Date: Dec 2002
Posts: 576
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Not sure if I'm interpreting what you wrote correctly, but I'll give it a shot. As a good uncle the ball is in your court to make sure she learns the process for doing these problems on her own rather than just give her the answer.
Let X = the number You need to isolate X, and get it on 1 side of the equation (2/3) * X = (3 1/2) + (3/8)*X (did I interpret the problem correctly???) (2/3)*X = (7/2) + (3/8)*X Find common denominators: (16/24)*X = (7/2) + (9/24)*X Subtract (9/24)*X from both sides to isolate X on one side: (16/24)*X - (9/24)*X = (7/2) (7/24)*X = (7/2) Multiply both sides by (24/7) to get X (24/7)*(7/24)*X = (24/7)*(7/2) X = (24*7)/(7*2) Cancel out X = (12*1)/(1*1) X = 12 |
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10-09-2008, 10:39 PM
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Admiral
 
Join Date: Apr 2000
Location: Temple City, CA
Posts: 5,075
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yes, you are correct
Quote:
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10-09-2008, 11:41 PM
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#4 |
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Lieutenant Junior Grade
Join Date: Jul 2007
Posts: 121
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Brainiacks of G|A unite!
I would interpret the question and answer that way as well!
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10-10-2008, 12:45 AM
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#5 |
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Vice Admiral
Join Date: Dec 2000
Location: Cali, but missing Hong Kong and Texas
Posts: 4,442
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yup yup...thats right! bust out some calculus next time!
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Life is like toilet paper, long and useful! The stars at night, are big and bright *clap 4x* deep in the heart of TEXAS! |
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