The table shows the results of a biologist who captures and tags lake trout, and then sets them free. What is the trout populati
on in the lake?
A.) About 90
B.) About 340
C.) About 130
D.) About 250
A.) About 90
B.) About 340
C.) About 130
D.) About 250
1 answer:
Answer:
A.) About 90
Step-by-step explanation:
From the given table, the biologist tagged 150 trout. Also, he recaptured a total of 100 trouts of which 60 were recaptured with tags.
Thus, let the trout population in the lake be represented by x,
=
Cross multiply to have;
100 × x = 60 × 150
100x = 9000
Divide both sides by 100,
x =
= 90
Therefore, the trout population is about 90 in the lake.
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<h2><u>COMBINED OPERATIONS</u></h2><h3>Exercise</h3>
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