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Stella [2.4K]
3 years ago
10

To earn a fitness award, your average heart rate while walking must be between 80 and 89 beats per minute, inclusive. Suppose yo

u recorded 85, 81, and 87 beats per minute on your first three recordings. What are the possible heart rates you can have on the fourth and final recording in order to earn a fitness award?
(GIVING 25 POINTS)
Mathematics
2 answers:
Anika [276]3 years ago
5 0

Answer:

84

Step-by-step explanation:

hope this helps

Anna [14]3 years ago
5 0
I would say about 82
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Trying so hard but I need to know this and I need to show work too please help its due tomorrow worth32 points if you can help
Alex73 [517]
Well first you move the decimal on 0.24 over 2 places and then do the same to the 2.064. Divide simply and get the answer of 8.6. 
3 0
3 years ago
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If the equation is an identity or if it has no solution, write identity or no solution.
Ksenya-84 [330]

Answer:

7n + 5 − 9n = 8 − 2n − 3 = true

-2 n + 5 = 5 - 2 n = true

Step-by-step explanation:

Left-hand side:

Simplify the following:

7 n - 9 n + 5

Grouping like terms, 7 n - 9 n + 5 = 5 + (7 n - 9 n):

5 + (7 n - 9 n)

7 n - 9 n = -2 n:

Answer: -2 n + 5

____________________________

Right-hand side:

Simplify the following:

-2 n - 3 + 8

Grouping like terms, -2 n - 3 + 8 = (8 - 3) - 2 n:

(8 - 3) - 2 n

8 - 3 = 5:

Answer: 5 - 2 n

7 0
4 years ago
Can sombody help me i am bad at math illl give brainlist tho
laila [671]

Answer:

A and C are correct

Step-by-step explanation:

Making the decimal value greater than 4.3 or 4.30 will make the statement correct

5 0
2 years ago
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Simplify completely quantity 4 x squared minus 32 x plus 48 all over quantity 3 x squared minus 17 x minus 6.
Yuki888 [10]

For this case we must simplify the following expression:

\frac {4x ^ 2-32x + 48} {3x ^ 2-17x-6}

Simplifying the numerator, dividing all the terms by 4, we have:

x ^ 2-8x + 12

We factor by looking for two numbers that when added together give -8 and when multiplied by 12. These are: -6 and -2

-6-2 = -8\\-6 * -2 = 12

So, we have to:

x ^ 2-8x + 12 = (x-6) (x-2)

Simplifying the denominator:

We rewrite -17x as -18x + x:

3x ^ 2-18x + x-6

We factor the highest common denominator of each group:

3x (x-6) +1 (x-6)

We factor the polynomial by factoring the highest common denominator (x-6):

(x-6) (3x + 1)

So, we have to:

3x ^ 2-17x-6 = (x-6) (3x + 1)

Substituting in the original expression we have:

\frac {(x-6) (x-2)} {(x-6) (3x + 1)} = \frac {x-2} {3x + 1}

ANswer:

\frac {4x ^ 2-32x + 48} {3x ^ 2-17x-6} = \frac {x-2} {3x + 1}

4 0
3 years ago
The sum of 11.6 and 4.1 by rounding each number to the nearest whole.
Karo-lina-s [1.5K]
11.6 rounded to the nearest whole is 12 and 4.1 rounded to the nearest whole is 4 (rule is if the decimal [or number in general] is 4 or lower, the whole stays the same and if the number is 5 or higher, the whole goes up by one). 12+4=16
3 0
2 years ago
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