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tory74
29.08.2020 •
Mathematics
Emma is trying to decide whether to buy a new laptop. As a student, she has a budget and wants to make sure this is the right financial decision. Which question should she ask herself in determining the opportunity cost of this purchase? What will I have to sacrifice if I buy this laptop?, Can I use credit to buy this laptop?, Do I need this laptop for my studies?, Is there a less costly alternative to buying this laptop?
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Ответ:
Step-by-step explanation:
The digital root of a number is the single digit that you get by adding all of the digits of the original number together. If the result of that is multiple digits, you add those digits together, repeating the process until you get a single digit. That digit is the digital root of the original number.
example given
257520643
2+5+7+5+2+0+6+4+3
7+12+2+10+3
7+1+2+2+13
8+4+1+3
8+4+4
12+4
16
1+6=7