Question

Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 2.5x10 to the 5th power

Answer 1

Answer:

104.17 hours.

Step-by-step explanation:

We have been given that Samuel can type nearly 40 words per minute. We are asked to find time taken by Samuel to type $2.5\times 10^{5}$ words.

To find number of hours, we will divide $2.5\times 10^{5}$ by 40 as:

$\frac{2.5\times 10^{5}}{40}$

$\frac{2.5\times 10^{5}}{4\times 10}$

$\frac{2.5\times 100000}{40}$

$\frac{250,000}{40}$

$6250$

Now, we will convert 6250 minutes to hours by dividing 6250 by 60 as 1 hour equals 60 minutes.

$\frac{6250}{60}=104.166\approx 104.17$

Therefore, it will take 104.17 hours to type the given words.

Answer 2

10 to the 5th power is 100,000.

So, 2.5 x 100,000 = 250,000

Since Samuel can type 40 words per minute, do 250,000 ÷ 40 = 6250

Since there are 60 minutes in an hour and Samuel types 40 words per minute, multiply 40 x 60 until you get close to 6250.