Answer:
There are no solution to those equations
Step-by-step explanation:
The answer for your question is 21. Which is b. The reason why i got that answer is because when you plug in 3 then you multiply that which will give you 6 then subtract that by 27 then that will give you 21.:)
Hop this helps:)
If every second it is going above five then the 10 will go above 15 above 20 and on. Hope this helped.
Answer:
416
Step-by-step explanation:
Add all the separate areas.
The first term is 138
The difference is 55
The iterative rule for the amount of money Mr Speas has after n weeks is
55/2 n² + 221/2 n
During the first week she has $138 in his bank account. At the end of each week she deposited $55 into her bank account.
The first term will be 138 .
The common difference is 55 because her bank always increase by $55 dollars every week. The sequence will be 138, 193, 248, 303, 358...…
The difference = 193 - 138 = 55.
The iterative rule for the amount of money Mr Speas has after n weeks can be represented below
n = number of weeks
a = first term = 138
d = common difference = 55
Using AP formula,
sₙ = n/2(2a + (n - 1)d)
sₙ = n/2 (2(138)+ (n - 1)55)
sₙ = n /2(276 + 55n -55)
sₙ = n /2(221 + 55n)
sₙ = 55/2 n² + 221/2 n
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