15 y yo me voy de vacaciones y no voy para allá
A) 2 1/3 = 7/3
7/3 / 1/4 = 7/3 x 4/1 = 28/3 = 9 and 1/3
b) 4 2/5 = 22/5
1 1/5 = 6/5
22/5 / 6/5 = 22/5 x 5/6 = 110/30 = 3 and 2/3
Answer:
66
Step-by-step explanation:
The sequence you provided seems to be arithmetic as it increases as 4 each term. Assuming 1 is the first term the equation would be . You could just take the first 6 terms and add them together since you already have 4 values calculated and you could calculate the other 2 by adding 4. This would give you
(1 + 5 + 9 + 13 + 17 + 21) = 66
But there's an easier way to do it. You could use the formula . You can calculate by plugging in those values. You would need to calculate before hand, but you can calculate that using the formula I defined above. Which in general is where d is like the slope, or how much it changes each term. So if you calculate you'll get . Now plug this into the series formula above and you get which is exactly what you get if you add the first 6 terms as shown above when you do it manually.
Its easy.
x=2a-b²
x+b²=2a
(b²+x)/2 = a
Hope this helps