Texas Instruments TI-5019 - Discount and Ratio Calculations; Discount and Percent Ratio; Constant Calculations; Multiplying and Dividing by Constants

6
5019ENG.DOC TI-5019 Guidebook, English Robin Hunt-Smith
Revised: 06/23/00 10:00 AM Printed: 06/23/00 10:00 AM Page 6
of 6
Discount
69.95
-
10%
Press Display Print
K
69.95
=
69.95 69.95 –
10
B
62.95
10.
62.95
%
∗
Percent Ratio
29.5 is what percent of 25?
Press Display Print
K
29.5
?
29.5 29.5.
ö
25
B
118.00
25.
118.00
%
∗
Using Constants
Multiplying by a Constant
5 x 3 = 15 5 x 4 = 20
The first number in a multiplication problem is the constant multiplier.
Press Display Print
K
5
>
5. 5. x
3
A
3. =
15.00 15.00
∗
4
A
4. =
20.00 20.00
∗
Note:
You can also find different percentages of a constant value by
completing the calculation with
B
instead of
A
.
Dividing by a Constant
66 ÷ 3 = 22 90 ÷ 3 = 30
The second number in a division problem is the constant divisor.
Press Display Print
K
66
?
66. 66. ÷
3
A
3. =
22.00 22.00
∗
90
A
90. =
30.00 30.00
∗