Investment. A person has $ 100 , 000 to invest. If $ x are invested in a money market account yielding 7 % and twice that amount in certificates of deposit yielding 9 % , and if the rest is invested in high-grade bonds yielding 11 % , write an algebraic expression that represents the total annual income from all three investments. Simplify the expression.
Investment. A person has $ 100 , 000 to invest. If $ x are invested in a money market account yielding 7 % and twice that amount in certificates of deposit yielding 9 % , and if the rest is invested in high-grade bonds yielding 11 % , write an algebraic expression that represents the total annual income from all three investments. Simplify the expression.
Solution Summary: The author calculates the algebraic expression for the total annual income from all three investments, when an individual has 100,000 to invest.
Investment. A person has
$
100
,
000
to invest. If
$
x
are invested in a money market account yielding
7
%
and twice that amount in certificates of deposit yielding
9
%
, and if the rest is invested in high-grade bonds yielding
11
%
, write an algebraic expression that represents the total annual income from all three investments. Simplify the expression.
A tank contains 60 kg of salt and 2000 L of water. Pure water enters a tank at the rate 8 L/min. The
solution is mixed and drains from the tank at the rate 11 L/min.
Let y be the number of kg of salt in the tank after t minutes.
The differential equation for this situation would be:
dy
dt
y(0) =
Simplify the below expression.
3 - (-7)
Solve the initial value problem:
y= 0.05y + 5
y(0) = 100
y(t) =
Chapter A Solutions
Finite Mathematics for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
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