##### Can someone explain to me how they got the answer ?

 Mathematics Tutor: None Selected Time limit: 1 Day

The following table compares dollar values per standard cord (128 cubic feet) to values per thousand board-feet (MBF) under the Scribner scale for trees 12 inches in diameter.

Value per cordValue per MBF Scribner
\$20\$68.00
\$24\$81.60
\$28\$95.20
\$36\$122.40

(a) Make a table showing the average rate of change for each interval of values. (Give your answers correct to one decimal place.)

 Interval Rate of change 20 to 24 24 to 28 28 to 36 (No Response)  3.4 (No Response)  3.4 (No Response)  3.4

Oct 3rd, 2015

interval -                       20 to 24

rate of change  =      MBF Scribner change / interval change

= 81.60- 68.00 / 24-20

=  13.6 / 4

interval -                       24 to 28

rate of change  =       MBF Scribner change / interval change

= 95.20 - 81.60 / 28 - 24

= 13.6  / 4

interval -                       28 to 36

rate of change  =       MBF Scribner change / interval change

= 122.40  -95.20  / 36 - 28

= 27.2  / 8

 Interval Rate of change 20 to 24 24 to 28 28 to 36 3.4 3.4 3.4

Please let me know if you need any clarification. I'm always happy to answer your questions.....thank you
Sep 15th, 2015

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Oct 3rd, 2015
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Oct 3rd, 2015
Dec 4th, 2016
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