3:2, easy.
the rest you dont need to read i just need 20 characters to "explain it well".
- 14,000 feet hopefully....
Answer:
A. 500 calories/day
B. 1700 calories/day
Step-by-step explanation:
Part A. Peter needs to reduce his caloric intake by ...
(3500 cal/wk)/(7 day/wk) = 500 cal/day
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Part B. Reducing his 2200 cal/day intake by 500 cal/day will mean Peter's new daily goal should be ...
(2200 cal/day) - (500 cal/day) = 1700 cal/day
You use the arithmetic sequence formula and input the information given to you.
tn = a + (n-1)d
t(56) is what your looking for so don't worry about the tn.
a is your first term,
a = 15.
n is the position of the term you are looking for, n = 56.
And d is the common difference, you find this by taking t2 and subtracting t1. t2=18 and t1=15.
d = 18 - 15 = 3
Inputting it all into the formula you get,
t(56) = 15 + (56-1)(3)
term 56 = 180.
You use this formula to find any term in a sequence provided you are given enough info. You can also manipulate it if you are asked to find something else like the first term(a), common difference(d) or term position(n). It just depends on what the question is asking and what information you are given. :)
Hope this helps!
The solution is solved as the following:
10 + 10(2a - 4) + (8a - 6)
10 + (10 * 2)a + (10 * -4) + 8a - 6
10 + 20a -40 + 8a -6
28a - 36