Mat 1033 Common Final Review Worksheet With Answers - Santa Fe College Page 8
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2129.
A mother wants to invest $13000 for her children's education. She invests a portion of the
money in a bank certificate of deposit (CD account) which earns 4% and the remainder in a
savings bond that earns 7%. If the total interest earned after one year is $780, how much
money was invested at each rate?
Part1: How much money was invested in the CD account?
$____________ (Round to the nearest cent.)
Part2: How much money was invested in savings bonds?
$____________ (Round to the nearest cent.)
___________________________________________________________________________________
y
30.
Find the slope of the line, and
10
sketch the graph.
8
6
x + 4 = 0
4
The slope is ____________ .
2
x
(Write N if the slope is undefined.)
-10 -8 -6 -4 -2
2
4
6
8 10
-2
-4
-6
-8
-10
__________________________________________________________________________________
31.
Solve the equation for p.
r
p
+
= 3
6
p = _____________.
(Simplify your answer.)
____________________________________________________________________________________________
32.
Solve the system by graphing. Graph each
equation using the coordinate grid on the
right.
y
x
8
=
+
y
x
2
= −
−
What is the solution to the system? Select
the correct choice below and, if necessary,
fill in the answer blank within your choice.
a.
The solution is ____________.
(Write an ordered pair.)
b.
There are infinitely many solutions.
c.
There is no solution.
MAT 1033 Common Final Review Packet
Page 8
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