Mathematics: Is the ratios 2.5,3.5 and 5.7 porportional

Is the ratios 2.5,3.5 and 5.7 porportional - id2535572331506, jazmineweb234

Ответ:

tami5

02.01.2022

Mathematics

No because 2/3 to 3/5 and 3/5 to 5/7 arent proportional.

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Ответ:

zach8782

18.02.2020

Mathematics

$3*10^8 \frac{m}{s} \\\\ 1m\to 10^{-3}km \\\\ 1s\to 36*10^{-4} h \\\\\\ 3*10^8* \frac{10^{-3}km}{36*10^{-4}s}= 10^8 * \frac{10^{-3}*10^4km}{12s}= \\\\ =10^8* \frac{10m}{12s}= \\\\ =10^8* 83*10^{-2} \frac{m}{s}=\\\\= \boxed{83*10^6 \frac{m}{s}}$

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