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Karolina [17]
3 years ago
10

If a heart beats 30 times in 40 seconds. How many times will it beat in 1 year?

Mathematics
2 answers:
Murljashka [212]3 years ago
7 0

Answer:

10950

Step-by-step explanation:

1 year = 365

365 × 30

10950

sdas [7]3 years ago
7 0

Answer:

23,652,000 per year

Step-by-step explanation:

30 times in 40 seconds=15 times in 20 seconds

that's 45 times in one minute

45per min x (60m/hr) x (24hr/day)=64,800 per day

x (365 days per year)=23,652,000 per year

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2 years ago
Which expression is a simplified form of –10g – 4h^2 + 15g – 8h^2 – 4?
igomit [66]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

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»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

-10g -4h^2+15g-8h^2-4\\------------------\\\rightarrow -10g+15g -4h^2-8h^2-4\\\\\rightarrow 5g - 12h^2 - 4\\\\\rightarrow \boxed{-12h^2+5g-4}

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

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