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Bingel [31]
2 years ago
11

The difference of the reciprocals of two successive integers equals the product of their reciprocals

Mathematics
1 answer:
sergey [27]2 years ago
5 0

Answer:

see below

Step-by-step explanation:

1         1

--- - --------

n       n+1

Get a common denominator

1(n+1)          1(n)

---------- - --------

n(n+1)       (n+1)n

n+1 - n

-----------------

n(n+1)      

1

-----------------

n(n+1)

Separate into two fractions

1        1

---- * ------

n       n+1

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Alicia bikes 25% of a 100-mi trip on the first day. she bikes of the remaining distance on the second day. on the third day, she
DochEvi [55]
First day: 25% × 100 = 25 ( miles)
Second day : the remaining distance is 100 - 25 = 75 ( milesl
Third day: 40% × 75 = 30
25 + 75 + 30 = 130 (miles)

5 0
3 years ago
1. what is 10% of 20? 2.What is 5% of 10?
Airida [17]
Hello,

Shall we begin?

1. what is 10% of 20?      = 20 * 0.1 = 2
2.What is 5% of 10?        = 10 * 0.05 = 0,5
3. What is 25% of 100?   = 100 * 0,25 = 25
4. What is 15% of 50?     = 50 * 0.15 = 7,5
5. What is 30% of 60?     = 60 * 0,3 = 18
6. What is 50% of 80?     = 80 * 0,5 = 40
7. What is 20% of 120?   = 120 * 0,2 = 24
8. What is 35% of 70?     = 70 * 0,35 = 24.5
9. What is 75% of 150?   = 150 * 0,75 = 112.5
10. What is 60% of 90?   = 90 * 0,6 = 54
11. What is 40% of 40?   = 40 * 0,4 = 16
12. What is 55% of 110? = 110 * 0.55 = 60.5
13. What is 80% of 130? = 130 * 0,80 = 104



5 0
3 years ago
Read 2 more answers
If k(x) = 2x² -3.Vx, then k(9) is
Alexus [3.1K]

Answer:

159

Step-by-step explanation:

k (9) = (2 * 9^{2}) - 3

= (2 * 81) - 3

= 162 - 3

= 159

8 0
2 years ago
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3 0
3 years ago
I need the answer for 21
levacccp [35]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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