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Svet_ta [14]
2 years ago
14

I NEED HELP!!!!

Mathematics
2 answers:
sp2606 [1]2 years ago
3 0

Answer:

About 50% percent

Step-by-step explanation:

20 is 50 percent of 40, so 21 is about 50 percent (52.5 %)

~theLocoCoco

gayaneshka [121]2 years ago
3 0

Answer:

52.5%

Step-by-step explanation:

21/40 = 52.5/100

52.5/100= 52.5%

im not sure but you can try :<

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Assuming that a soap bubble is a perfect sphere, what is the diameter of a bubble containing 1,000 cm3 of air? Round to the near
Minchanka [31]

Answer:

17.85 cm

Step-by-step explanation:

1) Area of a sphere formula: A=4\pi r^{2}

2) Plug in A: 1000 = 4\pi r^{2}

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4) Divide Each Side By 12.56: 79.61783439 = r^{2}

5) Take the Square Root of 79.61783439 to Solve for r: 8.922882628 = r

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3 years ago
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vlada-n [284]
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3 years ago
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Helga [31]

Answer:

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Step-by-step explanation:

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sesenic [268]
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What is the volume of the cube shown?
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