A seismologist recorded a tremor of magnitude 7.0 on the Richter scale. The next day, he recorded an earthquake four times as strong. What was the magnitude of the last earthquake to the nearest tenth?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.3: Evaluate And Graph Logarithmic Functions
Problem 10.53TI: In 1906, San Francisco experienced an intense earthquake with a magnitude of 7.8 on the Richter...
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5. A seismologist recorded a tremor of magnitude 7.0 on the Richter scale. The next day, he recorded an earthquake four times as strong. What was the magnitude of the last earthquake to the nearest tenth?
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