How much more intense is an 8. 5 earthquake than a 5. 5
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To solve a proportion set it up like
Now cross multiply the -30 and the 8 so -30 x 8 = -240
Now take the -240 and divide it by 2
So x = -120
Answer = 120
Now cross multiply the -30 and the 8 so -30 x 8 = -240
Now take the -240 and divide it by 2
So x = -120
Answer = 120