-- point (1, -2)
-- point (10, 25)
7 hrs per week on internet
9 hrs per week playing video games
thats a total of 16 hrs a week
5 hrs free time per day......thats (5 * 7) = 35 hrs free time per week
16/35 = 0.457 = 45.7% <==
Explanation:
If your actual answer is very far from your estimate, you probably made a mistake somewhere.
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<em>Additional comment</em>
50 years ago, when a slide rule was the only available calculation tool, making an estimate of the result was a required part of doing the calculation. Not only were the first one or two significant digits needed, but also the power of 10 that multiplied them. Use of a slide rule required the order of magnitude be computed separately (by hand) from the significant digits of the result.
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You may also find it useful to estimate the error in your estimate. That is, you may want to know the approximate answer to 2 (or more) significant digits in order to gain confidence that your calculation is correct.
Step-by-step explanation:
Use the above formula
-5 is the difference between the numbers..
hope you understood..
Answer:
the answer is 20
Step-by-step explanation:
20/2= 10. 10-6= 4.
