HP -225 Owner's Manual page 120

Scientific calculator
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0
N?value
Stores F, prompts for
N.
36
B?value
Stores N, prompts for
B.
7250 (-] 1500
B=5,750.00
Calculates and stores
P=-186.89
B, calculates P.
Part 2: What interest rate would you have to get to reduce your
monthly payment by $10?
B(soLve] {1}
P?-186.89
Selects I, prompts for
P.
10
P=-176.89
Calculates and stores
F?0.00
reduced P, prompts for
F.
N?36.80
Retains previous F, N
B?5,750.00
and B, calculates I.
1=0.56
(x]12 (=]
6.75
Calculates annual in-
terest rate.
See chapter 8 for additional TVM examples.
112
7: The Equation Library

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