## Unofficialllyy one year ago Could someone help with this question? WILL FAN AND MEDAL

1. DecentNabeel

yes @Unofficialllyy

2. Unofficialllyy

In step 1, you found the volume (in cubic feet) of the main tank. If the maximum density of killer whales per cubic foot is 0.000011142, what is the maximum number of killer whales allowed in the main show tank at any given time? You must explain your answer using words, and you must show all work and calculations to receive credit. My answer for step one was Volume=359,189. I know the volume for Density is mass/volume. So do I just divide 0.000011142 by 359,189?

3. Unofficialllyy

I meant I know the formula for density is mass/volume.

4. DecentNabeel

formula for density is mass/volume D = m/v mis the mass and v is the volume

5. Unofficialllyy

Yeah that's what I said. So I just plug in my answer from step 1, into v and the m is the number given in the problem? (0.000011142)

6. DecentNabeel

0.000011142/ 359,189

7. DecentNabeel

$\frac{0.00001}{359189}=2.78405E-11$

8. Unofficialllyy

Well 359,189 was my rounded answer from step 1. Should I do the whole number?

9. Unofficialllyy

@jim_thompson5910 can you help? :(

10. Unofficialllyy

Maybe I didn't get the correct answer for step 1.....I really need help! :(

11. DecentNabeel

the density is 11

12. Unofficialllyy

It said to use the density formula, but the questions is asking what is the maximum number of killer whales allowed in the main show tank at any given time?

13. DecentNabeel
14. DecentNabeel

you can see it

15. Unofficialllyy

Wait, the problem gave me the density.

16. Unofficialllyy

It says the maximum density of killer whales per cubic foot is 0.000011142.

17. DecentNabeel

What is the volume of the main tank? If you want the max. number of killer whales allowed in the main tank, calculate this: (Whale occupational density in Whales per cubic foot) * (Tank volume in cubic feet) Assuming that you found that the tank volume in cubic feet is 179503, then your calculation seems appropriate. Watch those units of measurement! Whalescubic/foot∗cubic.feet=number.of.whales

18. Unofficialllyy

And I have to figure out what is the maximum number of killer whales allowed in the main show tank that has a volume of 359,189

19. Unofficialllyy

So am I trying to figure out the mass?

20. Unofficialllyy

So does this mean I have $0.000011142=\frac{ mass }{ 359,189 }$

21. jim_thompson5910

You found the volume to be 359,189 cubic feet You're given a density of whales per cubic feet. That's how many whales there are in ONE cubic foot. So we need a lot of cubic feet for just one whale. You multiply the two like so |dw:1437266784801:dw|

22. jim_thompson5910

notice how I set up the density so that the "cubic feet" units cancel |dw:1437266871172:dw|

23. Unofficialllyy

and I multiply the two to get 4.00208384

24. jim_thompson5910

oops I meant to write You're given a density of 0.000011142 whales per cubic feet.

25. jim_thompson5910

yeah 4.002083838

26. jim_thompson5910

round down to get 4

27. Unofficialllyy

So approx 4 whales to each tank

28. jim_thompson5910

you can have at most 4 whales in the tank

29. Unofficialllyy

Thank you!!

30. jim_thompson5910

yw

31. Unofficialllyy

thank you @DecentNabeel !!!

32. DecentNabeel

np :)