Which expression gives the x-coordinate of the solution of the system 3x - y + z = 9?
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Answer:
<h2>$ 22200 in higher yielding bank and $ 44400 in lower yielding bank</h2>Step-by-step explanation:
Jolene invests in two bank accounts. The first account gives a 4% interest per year and the second bank gives a 10% interest rate per year.
She puts twice as much in the lower yielding bank account. Let us denote the amount put in high yielding bank account by . Lower yielding bank account will have
.
Interest from lower yielding bank =
Interest from higher yielding bank =
Total Interest per year = $ 3996 =
∴ Jolene invested $ 22200 in higher yielding bank and $ 44400 in lower yielding bank.
Explanation:
Since we have given that
The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by
As we know that,
Now,
and
So,
So, the expected value of a t-shirt = $31.