Mathematics, 09.07.2019 11:50 elyzarobertson
Estimate how many times larger 7 x 10^10 is than 13 x 10^8. a) 50 times larger b) 100 times larger c) 200 times larger d) 400 times larger
Answers: 2
is 50 times larger than 
![\Rightarrow\ n=\frac{7\times10^{10}}{13\times10^{8}}\\\\\Rightarrow\ n=\frac{7\times10^{10-8}}{13}.......[by\ law\ of\ exponents\ \frac{a^m}{a^n}=a^{m-n}]\\\\\Rightarrow\ n=\frac{7\times10^2}{13}\\\\\Rightarrow\ n=\frac{7\times100}{13}\\\\\Rightarrow\ n=\frac{700}{13}=53.84\approx50](/tpl/images/0069/2915/3f034.png)
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Estimate how many times larger 7 x 10^10 is than 13 x 10^8. a) 50 times larger b) 100 times larger...
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