



 
Hi Samima, The subject line of your email was Algebra so let's do it algebraically. Suppose the two numbers are $a$ and $b$ where $a$ is the larger. The sum of the two numbers is 1 and the difference is 0.85 so you know that \[a + b = 1 \mbox{ and } a  b = 0.85.\] Adding these two equations gives \[a + b + a  b = 1 + 0.85 \mbox{ or } 2a = 1.85.\] Solve for $a$ and $b.$ Once you have found $a$ and $b,$ verify that they are correct. Penny 



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