joesharpe3825 joesharpe3825

26-02-2018
Mathematics

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The sum of two numbers is 100 and their difference is 6 what are the two numbers

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dannielle dannielle

26-02-2018

a+b=100
a-b=6 ⇒ a= b+6

(b+6)+b=100
2b+6=100
2b=100-6
2b=94
b=94:2
b=47
a=47+6
a=53

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