johanaestrada2p2pzx2 johanaestrada2p2pzx2
  • 17-01-2018
  • Mathematics
contestada

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 :

Americ
Americ Americ
  • 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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