Biologists tagged 139 fish in a lake on January 1, On February 1, they returned and collected a random sample

Mathematics

1 answer:

Bogdan [553]3 years ago

4 0

Answer:

417 fish

Step-by-step explanation:

139/(10/30)=139*3=417

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Frank, Leah and Tom play a trivia game. Frank's score is -12 points. Leah's score is 48 points higher than Frank's score. Tom's

sasho [114]

Answer:

- 40

Step-by-step explanation:

-12 + 48 = -60 60 th 2/3 is -40

5 0

3 years ago

The cost CC (in dollars) of making nn watches is represented by C=15n+85C=15n+85. How many watches are made when the cost is $38

dangina [55]

$\bf \stackrel{cost}{C}=15\stackrel{watches}{n}+85\qquad \boxed{C=385}\qquad \stackrel{cost}{385}=15n+85
\\\\\\
380=15n\implies \cfrac{380}{15}=n\implies \cfrac{76}{3}=n\implies 25\frac{1}{3}=n$

so, 25 whole watches and hmmmm just the wristband of another maybe.

5 0

3 years ago

What is the slope of this graph

Masja [62]

Answer:

Slope, m = 5

Step-by-step explanation:

Picking points on the x-axis and y-axis of the graph;

Point on x-axis (x1, x2) = 2, 4

Points on the y-axis (y1, y2) = 10, 20

To find the slope;

Mathematically, slope is given by the formula;