I am assuming you are trying to find the sum.
First, plug in n for 1, then n for 80 to get the following numbers:
5/6 and 163/6
As you go up the sequence, as n is increased by 1, then the next number is increased by 1/3
Use the arithmetic sequence formula to solve for the sum.
n * (a1 + a2)/2 where a1 is 1st number and a2 is last number.
80 * (5/6 + 163/6)/2
Simplify the expression to get 1120.
Answer:
The amount put in the account that paid 7% ( Fund B) was $6,500
Step-by-step explanation:
Let
x -----> the amount put in the account that paid 5% (Fund A)
$10,000-x -----> the amount put in the account that paid 7% (Fund B)
in this problem we have
so
therefore
The amount put in the account that paid 7% ( Fund B) was $6,500
Answer 10x - 15
Step-by-step explanation:
Because when you do the distributive property, you multiply the things in the parenthesis so 5 multiplied by 2x would be 10x and 5 multiplied by -3 would be -15. Hope this helps :)
