halleross56 halleross56

03-07-2017
Mathematics

contestada

ericas apartment house are consecutively numbered on each floor. the sum of her and her neighbors number is 2409. what are the 2 numbers?

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texaschic101 texaschic101

03-07-2017

2 apartments consecutively numbered : x and x + 1

x + (x + 1) = 2409
2x + 1 = 2409
2x = 2409 - 1
2x = 2408
x = 2408/2
x = 1204

x + 1 = 1204 + 1 = 1205

so the 2 numbers are : 1204 and 1205

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