Answer:
7. 4
8. 7
Step-by-step explanation:
7.
Cross multiply
(division property of equality)
8.
Cross multiply
(addition property of equality)
Divide both sides by 6
Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 11 percent simple interest per year.
She puts twice as much in the lower-yielding account because it is less risky. Her annual interest is 4408 dollars. How much did she invest at each rate? 
1 answer:
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Answer:
Explanation:
The th term of an arithmetic sequence is explicitly defined as
where
is the first term of the sequence and
is the the common difference.
From the given first five terms of the sequence we can see that the first term is so
.
The common difference, , can be calculated by
so we'll find the common difference of the given sequence by letting
.
Now let's plug everything we know.