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17-01-2018
Mathematics

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The area of a certain desert (Desert 1) is nine times the area of another desert (Desert 2). If the sum of their areas is 40,000,000 square miles, find the area of each desert.

Respuesta :

28-01-2018

x= Desert 2
y= Desert 1 = 9x (because it is 9 times the area of Desert 1)

Add the two areas together.

x + 9x = 40,000,000
10x = 40,000,000
Divide both sides by 10
x= 4,000,000 sqr mi=area of Desert 2

9x= area of Desert 1 = y
9(4,000,000)= 36,000,000 sqr mi

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