Find the numbers: ratio is 3:4, sum is 98, product is 768  TOPIC_SOLVED

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Find the numbers: ratio is 3:4, sum is 98, product is 768

Postby angelbaby on Tue Apr 14, 2009 11:04 pm

Here is the problem: Two numbers are in the ratio 3:4. Find the numbers if
A. their sum is 98.
B. their product is 768.
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Postby stapel_eliz on Tue Apr 14, 2009 11:13 pm

What have you tried? How far did you get? Where are you stuck?

You named the numbers, something maybe like "x" and "y", and used the ratio information:

. . . . .

Then you noted that x + y = 98, so y = 98 - x, so:

. . . . .

And... then what? Or, if you used some other method, what was it?

Please be complete. Thank you! :D
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Re: Find the numbers: ratio is 3:4, sum is 98, product is 768

Postby angelbaby on Wed Apr 15, 2009 3:53 am

I am trying to find the two numbers whose sum is 98.
The answer guide says 42 and 56. I want to know how they came up with these two numbers.
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Re: Find the numbers: ratio is 3:4, sum is 98, product is 768  TOPIC_SOLVED

Postby Martingale on Wed Apr 15, 2009 11:52 am

angelbaby wrote:I am trying to find the two numbers whose sum is 98.
The answer guide says 42 and 56. I want to know how they came up with these two numbers.


solve...

stapel_eliz wrote:. . . . .


for x. That will get you one number. Then you should be able to easily find the other.
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