the proportion used to find the average number of trout you would expect to live in the pond is…

the proportion used to find the average number of trout you would expect to live in the pond is \n$\frac{7}{20}=\frac{x}{400}$. \nsolve the proportion to find the expected number of trout in the population.\nthe expected number of trout in the population is \n\nsample 1\tsample 2\ncatfish\t3\t5\nbass\t9\t9\ntrout\t8\t6\nall fish\t20\t20

the proportion used to find the average number of trout you would expect to live in the pond is \n$\frac{7}{20}=\frac{x}{400}$. \nsolve the proportion to find the expected number of trout in the population.\nthe expected number of trout in the population is \n\nsample 1\tsample 2\ncatfish\t3\t5\nbass\t9\t9\ntrout\t8\t6\nall fish\t20\t20

Answer

Explanation:

Step1: Cross - multiply the proportion

$7\times400 = 20\times x$

Step2: Simplify the left - hand side

$2800=20x$

Step3: Solve for $x$

$x=\frac{2800}{20}=140$

Answer:

140