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Sloan [31]
2 years ago
8

Find the area of this circle. Use

Mathematics
1 answer:
Alina [70]2 years ago
7 0

Answer:

4,069.44 in squared

Step-by-step explanation:

pir^2

72/2 = 36

36^2 = 1,296pi

1,296*3.14 = 4,069.44

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A marine aquarium has a small tank and a large tank, each containing only red and blue fish. In each tank, the ratio of red fish
Anna007 [38]

Answer:

Ratio of blue fish in the small tank to the red fish in large tank is 10 : 6279

Step-by-step explanation:

Let the number of red fish and blue fish in the large tank are x and y respectively.

Similarly ratio of red fish and blue fish in the small tank are x' and y' respectively.

Since in each tank ratio of the red fish to blue fish is 333 : 444

That means x : y = 333 : 444

Or \frac{x}{y}=\frac{333}{444}

⇒ \frac{x}{y}=\frac{3}{4}

⇒ y = \frac{4x}{3} --------(1)

Similarly x' : y' = 333 : 444

⇒ \frac{x'}{y'}=\frac{333}{444}

⇒ \frac{x'}{y'}=\frac{3}{4}

⇒ x' = \frac{3y'}{4} ------(2)

Ratio of the fish in large tank to the fish in small tank is 464646 : 555

So (x + y) : (x' + y') = 464646 : 555

\frac{x+y}{x'+y'}=\frac{464646}{555}

Now we replace the values of x and y' from equation (1) and equation (2)

\frac{(x+\frac{4x}{3})}{(\frac{3y'}{4}+y')}=\frac{464646}{555}

\frac{\frac{7x}{3}}{\frac{7y'}{4}}=\frac{464646}{555}

\frac{4}{3}\times \frac{x}{y'}=\frac{464646}{555}

\frac{x}{y'}=\frac{3}{4}\times \frac{464646}{555}

\frac{x}{y'}=\frac{232323}{370}

\frac{y'}{x}=\frac{370}{232323}

\frac{y'}{x}=\frac{10}{6279}

Therefore, ratio of blue fish in the small tank to the red fish in large tank is 10 : 6279

4 0
4 years ago
HELP ME PRETTY PLEASE <br><br> (WILL PICK BRAINLIEST ANSWER)
barxatty [35]

Answer:

An infinite number of solutions

Step-by-step explanation:

This is because of all the 0's the zeros represent none and none is infinite. When in the matrix you are solving and solving is a infinite. When times 0 is 0 and when divided by 0 is infinite so an infinite amount of answers.

6 0
3 years ago
Work out the area of the tile.
zzz [600]

Answer:

190 cm²

Step-by-step explanation:

Use the area of a trapezium formula: \frac{1}{2} (a+b)h

where a and b are the top and bottom bases, and h is the height.

Therefore,

area = \frac{1}{2}\times (12+26)\times10 = 190 cm²

5 0
3 years ago
What is the ratio 15 to 35 written as a fraction in lowest terms?
Elden [556K]
15/35
3/7.................
3 0
3 years ago
Read 2 more answers
Alex is thinking of a double fact. The sum is greater than the sum of 7+7 but less than the sum of 8+9. What fact is Alex thinki
schepotkina [342]
Use an inequality:
S = sum

7 + 7 < S < 8 + 9
14 < S < 17

so the sum is between 14 and 17


8 0
4 years ago
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