HP 12C#ABA hp 12c_solutions handbook_English_E.pdf - Page 97

list and new and several discounts are known it may be desirable to calculate

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list and new and several discounts are known it may be desirable to calculate a missing discount. The following series of keystrokes may be used: 1. Key in 1, press 1. 2. Key in the first discount (as a percentage) and press 1 . 3. Repeat step 2 for each of the remaining known discount rates. 4. To calculate the list price, key in the net price and press 1 . 5. To calculate the net price, key in the list price and press 1 . 6. To calculate an unknown discount rate, immediately after doing step 3 (display should show 1.00), key in the net price, press and key in the list price. 7. Press 1 100 . Example: The list price of an item is $3.28 and the net price is $1.45. Two of the discount rates are 48% and 5%. What is the third discount rate? Keystrokes Display 1 1.00 1 48 1 1.00 5 1 1.00 1.45 0.49 3.28 1 100 10.51 3rd discount rate (%). The following program for the HP 12C will be helpful in performing the calculations: KEYSTROKES DISPLAY CLEAR 1 00- 01- 1 02- 34 03- 25 96

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96
list and new and several discounts are known it may be desirable to calculate
a missing discount. The following series of keystrokes may be used:
1.
Key in 1, press
1.
2.
Key in the first discount (as a percentage) and press
1
.
3.
Repeat step 2 for each of the remaining known discount rates.
4.
To calculate the list price, key in the net price and press
1
.
5.
To calculate the net price, key in the list price and press
1
.
6.
To calculate an unknown discount rate, immediately after doing step 3
(display should show 1.00), key in the net price, press
and key
in the list price.
7.
Press
1
100
Example:
The list price of an item is $3.28 and the net price is $1.45. Two
of the discount rates are 48% and 5%. What is the third discount rate?
The following program for the HP 12C will be helpful in performing the
calculations:
Keystrokes
Display
1
1
1.00
48
1
1.00
5
1
1.00
1.45
3.28
1
0.49
100
10.51
3rd discount rate (%).
KEYSTROKES
DISPLAY
CLEAR
00-
1
01-
1
02-
34
03-
25