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it take 2 lbs of applies to make 5 pies, so how many pounds of apples do you need to make 20 pies.  Please explain how to get answer so I can help my 6th grader.  He has the following examples:

no of pies          5           20

lbs of applies    2

The answer is 8 but how do I get there?

Oct 3rd, 2015

Thank you for the opportunity to help you with your question!

in this question, you will have to apply direct proportion and ask youself:

If 2lb can make 5 pies, how much lb would be needed to make 20 of the same pies?

the answer would definately be more than 5 pies as before. 

Therefore when you have established this truth, use direct proportion and do the math:

whenever the expected number of a quantity is larger than the present quantity, we use the larger number of the other party as the numerator of the equation...so this will be:

2/5*20= 8

there is your answer...you will need 8lb to make 20 pies.

Please let me know if you need any clarification. I'm always happy to answer your questions. Thanks
Sep 16th, 2015

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Oct 3rd, 2015
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