Question

our galaxy, the milky way, has a diameter of about 1×10²¹ meters. the largest galaxy known to man, the ic 1101, has a diameter of 5×10²² meters. the diameter of the ic 1101 is about how many times greater than the diameter of the milky way? milky way: 1×10²¹ m ic 1101: 5×10²² m 5 500 5,000 50

Explanation:

Step1: Set up division formula

To find out how many times greater the diameter of IC 1101 is than the Milky - Way, we divide the diameter of IC 1101 by the diameter of the Milky - Way. The formula is $\frac{5\times10^{22}}{1\times10^{21}}$.

Step2: Use exponent rule for division

When dividing numbers in scientific notation with the same base ($a\times10^{m}\div b\times10^{n}=\frac{a}{b}\times10^{m - n}$), we have $\frac{5}{1}\times10^{22-21}$.

Step3: Calculate the result

$\frac{5}{1}=5$ and $10^{22 - 21}=10^{1}=10$. So, $5\times10 = 50$.

Answer:

50