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Vika [28.1K]
3 years ago
14

Arrange the following fraction In ascenending order 7/13,7/9,7/15,7/19​

Mathematics
1 answer:
Tems11 [23]3 years ago
8 0

Answer:

\frac{7}{19},\frac{7}{15},\frac{7}{13},\frac{7}{9}

Step-by-step explanation:

Since the numerators are equal, arrange the denominators. The fraction with the biggest denominator is the smallest fraction.

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1/1×3 + 1/3×5 + ... + 1/47×49 HELP PLZ
Natalka [10]

Answer:

  24/49

Step-by-step explanation:

Let's add the terms and see if there's a pattern

  \dfrac{1}{1\times 3}+\dfrac{1}{3\times 5}=\dfrac{5+1}{1\times 3\times 5}=\dfrac{2}{5}\quad\text{sum of 2 terms}\\\\\dfrac{2}{5}+\dfrac{1}{5\times 7}=\dfrac{14+1}{5\times7}=\dfrac{3}{7}\quad\text{sum of 3 terms}

Suppose we say the sum of n terms is (n/(2n+1)), the next term in the series will be 1/((2n+1)(2n+3)) and adding that to the presumed sum gives ...

  \dfrac{n}{2n+1}+\dfrac{1}{(2n+1)(2n+3)}=\dfrac{n(2n+3)+1}{(2n+1)(2n+3)}=\dfrac{2n^2+3n+1}{(2n+1)(2n+3)}\\\\=\dfrac{(2n+1)(n+1)}{(2n+1)(2n+3)}=\dfrac{n+1}{2n+3}\text{ matches }\dfrac{(n+1)}{2(n+1)+1}

Then it appears the sum of n terms is (n/(2n+1)). So, the sum of 24 terms is ...

  S_{24}=\dfrac{24}{2\times24+1}=\boxed{\dfrac{24}{49}}

3 0
3 years ago
Identify the coefficient in the following expression 6a +7​
igomit [66]

Answer:

The coefficient is 6

Step-by-step explanation:

8 0
2 years ago
NO LINKS!
Ipatiy [6.2K]
Your answer is 23.31538291 feet.

7 0
2 years ago
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If a gas cost $3.29 per gallon and I fill my tank with 12.6 gallons then how much will I be charged
Lelu [443]

Answer:

Step-by-step explanation:

So you do 3.29*12.6=41.454. Since we are dealing with money we round to get $41.45

6 0
3 years ago
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67.5 Divided by 2.25 show work please:(!!
Andrej [43]
Your answers is 30, use this pic to show ur work

7 0
3 years ago
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