Answer:
C. y = 20
Step-by-step explanation:
Given system of equations:
Multiply the second equation by 3:
Subtract this from the first equation to eliminate 3y:
Solve the resulting equation for x:
Substitute the found value of x into the original second equation and solve for y:
Answer:
$18,726.11
Step-by-step explanation:
Lets use the compound interest formula provided to solve this:
<em>P = initial balance</em>
<em>r = interest rate (decimal)</em>
<em>n = number of times compounded annually</em>
<em>t = time</em>
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First lets change 9% into a decimal:
9% -> -> 0.09
Since the interest is compounded quarterly, we will use 4 for n. Lets plug in the values now:
<u>The balance after 5 years is $18,726.11</u>