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The sum of two numbers is 16 and their product is 35. Find the reciprocal of the sum of the two numbers.

 Sep 20, 2018
 #1
avatar+4624 
+2

The reciprocal of the sum of the two numbers can be written as 1x+1y

We have x+y=16, and xy=35 , so we can find the LCM of x and y .

 

So, we have: xxy+yxy . Adding both fractions, we get,x+yxy and plugging in the values we finally attain: 1635 .

smileysmiley

 Sep 20, 2018
edited by tertre  Sep 22, 2018
 #2
avatar+37165 
0

Your question states the sum of the numbers is 16....the reciprocal of this sum is 1/16

 

Did you mean to ask for the SUM of the RECIPROCALS of these numbers? (As Tertre calculated?{though Tertre used 13 instead of 16} ) cheeky     ( I think the answer will be 16/35......tertre must have used '16' in calculations )

 Sep 21, 2018
edited by ElectricPavlov  Sep 21, 2018
edited by ElectricPavlov  Sep 21, 2018
 #3
avatar+26396 
+10

The sum of two numbers is 16 and their product is 35.

Find the reciprocal of the sum of the two numbers.

 

(1)x+y=16(2)xy=35(1)(2):x+yxy=1635xxy+yxy=16351y+1x=1635

 

laugh

 Sep 21, 2018

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