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vichka [17]
3 years ago
7

A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?​

Mathematics
2 answers:
Andre45 [30]3 years ago
7 0

Answer:  4000 beats per hour

Step-by-step explanation:

<u>200 beats </u>     X   <u> 60 minutes</u>    

3 minutes               1 hour

The term 'minutes' cancel out therefore you are left with beats per hour

<u>200 x 60</u>       =    <u>12000</u>    =  4000 beats per hour

      3                         3

andreev551 [17]3 years ago
6 0

200 times / 3 minutes = x times / 60 minutes

3x = 12000

x = 4000 times in an hour

A person's heart will beat 4000 times in an hour.

Hope this helps!! :)

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What is the least common denominator of 1/3 and 4/7?
jolli1 [7]

Answer:

21

Step-by-step explanation:

The denominators are 3 and 7 and those are both odd numbers.

You can not get a number lower than 21. Therefore 21 is the LCM (Lowest common denominator.)  

Hope this helps :)

5 0
3 years ago
5x+9=2x+7+3x-15
andrew11 [14]

Answer:

No Solutions

Step-by-step explanation:

Step 1:

5x + 9 = 2x + 7 + 3x - 15  Equation

Step 2:

5x + 9 = 5x - 8   Add and Subtract

Step 3:

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Answer:

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Hope This Helps :)

3 0
3 years ago
Read 2 more answers
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vesna_86 [32]
When ur polynomial has more then one variable....and this one does...the degree is the highest term degree

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so the highest degree term has a degree of 5....so that is the degree of this polynomial.

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3 0
4 years ago
9. In the figure below, the area of Square 1 is
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Answer:

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Step-by-step explanation:

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From the Pythagorean Triple 13 - 12 - 5, the side length of square 3 is 5

Finally, 5 * 5 is 25

7 0
3 years ago
What is the range of the function?<br> A. (-1,3,5)<br> B. (2,6,8,3,5)<br> C. {3}<br> D. (2,6,8)
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