Mathematics: The average speed of a high-speed train in japan in 162 miles per hour. at this rate how many miles would the high-speed train travel in 45 minutes. a.40.5 miles b.72.9 miles c.81.0 miles d.121.5 miles

The average speed of a high-speed train in japan

manlyman31

13.01.2022

the answer is d. because if you know how to turn hours into minutes then you would figure it out

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felipa11

11.02.2023

0.000875

Step-by-step explanation:

We have been given a number in scientific notation $8.75\times 10^{-4}$ . We are asked to write this number in standard form.

Using exponent property $a^{-m}=\frac{1}{a^m}$ , we can write our given number as:

$8.75\times \frac{1}{10^{4}}$

$8.75\times \frac{1}{10000}$

$\frac{8.75\times 1}{10000}$

0.000875

Therefore, our required number would be 0.000875 .

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