75/100 = 15/20 , divide by 5 . 75/5= 15
100/5= 20 . Divide by 5 for 15/20 . 15/5= 3 , 20/5= 4
3/4*36 - Cross out 4 and 36. Divide by 4
4/4= 1 , 36/4= 9
3*9= 27
Answer :
75% of 27 =36
Step-by-step explanation:
OK. It's an arithmetic sequence:
The explicit formula of an arithmetic sequence:
Substitute:
The sigma notation of the sum of the first ten terms:
What are your mistakes:
The first ten terms, not from 20th to 29th (you wrote 6.5?)
Answer:
-1/15
Step-by-step explanation:
(y^2+3y-10)/(3(y+5)) / (5(2-y))
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Factor::
[(y+5)(y-2)/(3(y+5))] / (-5(y-2))
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Cancel (y+5) and (y-2) to get::
= -1/15