Percent

To calculate a percent, press %lafter 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 %lV

5000è3%

ß

,-150/.

 

 

 

 

 

 

:7 3 0 0 <2 I3 %l

Ans+7300è2. Þß

V

 

,317-/.9

 

 

 

 

:8 4 0 0 <3 I1 %l

Ans+8400è3. Þß

V

 

,578-/.3

 

 

 

 

 

 

<2 8 0 V

Ansè280

ß

 

 

161924,-/.

 

 

 

 

 

 

 

 

 

The three quantities of ore together contain 578.3 tons of metal. The value of the metal is $161924.

9

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

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Texas Instruments TI-36X manual Percent, Mining company mines 5000 tons of ore having a

TI-36X specifications

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