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SpyIntel [72]
2 years ago
14

One large bubble separates into four small bubbles so that the total area of the small bubbles is equal to the area of the large

bubble. Each small bubble has a radius of 5 centimeters. What is the radius of the large bubble?

Mathematics
1 answer:
anzhelika [568]2 years ago
5 0

Answer:

10 cm.

Step-by-step explanation:

We'll begin by calculating the area of the small bubble. This can be obtained as follow:

Radius (r) = 5 cm

Area (A) =?

Since the bubble is circular in nature, we shall use the formula for area of circle to determine the area of the bubble. This is illustrated below:

A = πr²

A = π × 5²

A = 25π cm²

Next, we shall determine the total area of the small bubbles. This can be obtained as follow:

Area of 1 bubble = 25π cm²

Therefore,

Area of 4 bubbles = 4 × 25π cm²

Area of 4 bubbles = 100π cm²

Finally, we shall determine the radius of the large bubble. This can be obtained as follow:

Area of large bubble = total area of small bubbles = 100π cm²

Radius (r) =?

A = πr²

100π = πr²

100 = r²

Take the square root of both side

r = √100

r = 10 cm

Thus, the radius of the large bubble is 10 cm

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544w + 11%

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3 0
3 years ago
Five times a number is the same as 30 more than 8 times the number. Find the number
WARRIOR [948]
Hello.

5x = 8x+30

5x-8x+30 = 0

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x=-10


Have a nice day

5 0
3 years ago
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To determine whether or not they have a certain disease, 150 people are to have their blood tested. However, rather than testing
Sophie [7]

Answer:

The answer is 75 tests for 150 people.

Step-by-step explanation:

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Therefor, the maximum number of groups with an individual getting disease is 6. Then, 6 * 11 tests = 66 tests required.

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7 0
3 years ago
The Ribys spent 5625 for 4.5 acres of land Find the price per acre
Margarita [4]
We can find the price per arc by dividing the total price by the amount of arc.
so in this case
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and 4.5 is what they get when spending that amount of money
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4 0
3 years ago
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I am having trouble<br> 2(10-13x)=-34x+60
morpeh [17]
<span>Simplifying 2(10 + -13x) = -34x + 60
(10 * 2 + -13x * 2) = -34x + 60
(20 + -26x) = -34x + 60
 Reorder the terms: 20 + -26x = 60 + -34x
 Solving 20 + -26x = 60 + -34x
 Solving for variable 'x'.
 Move all terms containing x to the left, all other terms to the right.
 Add '34x' to each side of the equation. 20 + -26x + 34x = 60 + -34x + 34x
 Combine like terms: -26x + 34x = 8x 20 + 8x = 60 + -34x + 34x
 Combine like terms: -34x + 34x = 0 20 + 8x = 60 + 0 20 + 8x = 60
Add '-20' to each side of the equation. 20 + -20 + 8x = 60 + -20
 Combine like terms: 20 + -20 = 0 0 + 8x = 60 + -20 8x = 60 + -20
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 Divide each side by '8'. x = 5
 Simplifying x = 5</span>
7 0
3 years ago
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