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seraphim [82]
2 years ago
11

Question 7 of 10

Mathematics
1 answer:
klemol [59]2 years ago
4 0
I think the answer is C. 45 units
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Assume a healthy heart beats exactly 70 times per minute. If an individual lives to age 85 years, estimate the number of heartbe
den301095 [7]

Answer:

3.12732 × 10⁹ beats

Step-by-step explanation:

Given that, in 1 min, the heart of an individual makes 70 beats, the number of beats the heart of the healthy individual makes in 85 years can be calculated as follows:

1 yr = 365 days, therefore,

85yrs = 85*365 = 31,025 days

1 day = 24 hours

31,025 days = 31,025*24 = 744,600 hours.

1 hr = 60 mins

744,600 hours = 744,600*60 = 44,676,000 mins

This means the individual lived for 44,676,000 mins (85yrs)

If 70 beats are made in 1 min, therefore, in 85yrs, the individual will make:

44,676,000*70 = 3,127,320,000 beats = 3.12732 × 10⁹ beats in 85yrs

4 0
3 years ago
3.1 4.2 4.3 1.51 5.4 9.2 what is the answer adding it up
olga55 [171]
27.71 is the sum

pls mark me the brainiest

hope i helped
6 0
3 years ago
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HELP IM LITERALLY IN CLASS AND IM TAKING A TEST
Umnica [9.8K]
I wouldn’t trust the links to a “photo” like the people in the comments said. If you give me the equation of the line the question is taking about I could solve it for you.
6 0
3 years ago
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A data set has a mean of x = 71 and a standard deviation of 11.6. Find the z-score for each of the following.
olchik [2.2K]

Answer:

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Step-by-step explanation:

5 0
2 years ago
PLEASE ANSWER ASAP! REALLY IMPORTANT! MUST BE CORRECT! POINTS GIVEN!
VMariaS [17]
 - 5/12  +  ( - 1/4) = 

Adding two negatives results in a negative

-1/4 = -3/12

-3/12 + -5/12  =  -8/12

-8/12 + 3/12    < Subtract and take the sign of the BIGGER number.

8 - 3 = 5

- 5/12

Answer:  - 5/12
8 0
3 years ago
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