Thania3902
02.04.2020 •
Mathematics
What is this recursive formula in explicit form: an=an-1-7 where a1=6 *
an=5n+13
an=-1n+1
an=-7n+13
an=an-1-1
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Ответ:
8 17/20
Step-by-step explanation:
1. (make all the fraction have the same denominator)the denominator is 20...
3/5= 12/20 3/4=15/20 1/2=10/20
2. (add) 5 12/20 + 15/20 + 2 10/20 = 7 37/20
3. (there is an improper fraction) u have to subtract 37-20...37-20=17 now add 1 hole number to the faction and put 17 over the 20 like this...17/20...now ur answer will be 8 17/20