My answer is wrong sorry. I didn't notice it.
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Answer:
348 trouts in the lake
Step-by-step explanation:
Since this is basically a ratio problem and we are given three values we can use the rule of three to solve for the missing variable which would be the total amount of trouts in the lake. To do so we multiply the total amount trouts tagged by the number of trouts caught later. Then we multiply that product by the amount that were found to be tagged later.
22 total trouts caught later <=========> 11 trouts were tagged
x total trouts <=========> 174 trouts tagged
(174 * 22) / 11 = 348 total trouts in the lake
Finally, we can see that the conservationist would expect there to be around 348 trouts in the lake.
A) One tenth is equal to 0.1, so you do 830,000 x 0.1 to get 83,000 people. You can also do 830,000 divided by 10 to get the same answer since it is one-tenth.
B) You can divide 5280 by 4 to find the answer of this one.
C) Divide by 4 again (because it is a fourth), but then multiply by three because the question asks for three-fourths.
D) A minute is 60 seconds, so 60 divided by 3 is 20. Given that it asks for two-thirds, you then multiple 20 by 2 to get the final answer of 40 seconds.
E) There are 24 hours in a day, so divide 24 by 8.
Hopefully this helps "get the ball rolling" for you!
