Texas Instruments solar TI-36X - Manual (Page 11)

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Ti36eng1.doc TI-36X II Manual Linda Bower Revised:
01/10/03 10:47 AM Printed: 01/10/03 10:47 AM Page 9 of
48
Percent
To calculate a percent, press %l after entering a
value.
³ Problem
A mining company mines 5000 tons of ore having a
3-percent concentration of metal, 7300 tons having a
2.3-percent concentration, and 8400 tons having a
3.1-percent concentration. How much metal does the
company get in total from the three quantities of ore?
If the metal is worth $280 per ton, what is the value of
the total amount of metal present in the three quantities
of ore?
5 0 0 0 < 3 % l V 5000 и3% Я
150.
,-/
: 7 3 0 0 < 2 I 3 % l
V Ans+7300 и2. ЮЯ
317.9
,-/
: 8 4 0 0 < 3 I 1 % l
V Ans+8400 и3. ЮЯ
578.3
,-/
< 2 8 0 V Ans и280 Я
161924.
,-/
The three quantities of ore together contain 578.3 tons
of metal. The value of the metal is $161924.