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he table shows the average weight og a type of plankton after several weeks.

Time (weeks)            Weight (ounces)

8                               0.04

9                                0.07

10                              0.14

11                              0.25

12                              0.49

What is the average rate of vhange in weight of the plankton from week 8 to week 12?

Guest May 24, 2015

Best Answer 

 #1
avatar+981 
+10

(0.49 - 0.04)/(12 - 8)  ..........(this is the total change over the 4 weeks)   

 

0.45 ounces/4 weeks ..........(in 4 weeks it increases by 0.45 ounces)

 

0.1125 ounces/week .......... (so on average, from week 8 to 12, the weight changes 0.1125 ounces per week)

zacismyname  May 24, 2015
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2+0 Answers

 #1
avatar+981 
+10
Best Answer

(0.49 - 0.04)/(12 - 8)  ..........(this is the total change over the 4 weeks)   

 

0.45 ounces/4 weeks ..........(in 4 weeks it increases by 0.45 ounces)

 

0.1125 ounces/week .......... (so on average, from week 8 to 12, the weight changes 0.1125 ounces per week)

zacismyname  May 24, 2015
 #2
avatar+91049 
+5

Nice answer Zac  

Melody  May 25, 2015

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