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ryzh [129]
3 years ago
13

If y varies inversely as x and x = 4 when y = 15, find y when x=6

Mathematics
1 answer:
lord [1]3 years ago
7 0

Answer:

y = 10

Step-by-step explanation:

Given y varies inversely as x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition x = 4 when y = 15 , then

15 = \frac{k}{4} ( multiply both sides by 4 )

60 = k

y = \frac{60}{x} ← equation of variation

When x = 6 , then

y = \frac{60}{6} = 10

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If each letter of the alphabet is worth two more than its preceding letter, where A is the first number and equals 1, B is the s
andrey2020 [161]

Answer:

<h2>The total value of all the letters in the alphabet is 676.</h2>

Step-by-step explanation:

The problem is about an arithmetic sequence where the difference is 2, the first term is 1 and we know that the alphabet has 26 letters.

To find the total sum of all values, we have to use the following formula

S_{n}=\frac{n}{2}(2a_{1}+(n-1)d )

Where n=26, a_{1}=1 and d=2. Replacing values, we have

S_{26}=\frac{26}{2}(2(1)+(26-1)2) =13(2+50)=13(52)=676

Therefore, the total value of all the letters in the alphabet is 676.

7 0
3 years ago
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jok3333 [9.3K]

Answer:

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Step-by-step explanation:

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2 years ago
Which 2 teams scored a total of 100 points, red has 29 points, yellow has 38 points, Green has 41 points, blue has 76 points ora
Bess [88]

Answer:

Blue and Black

Step-by-step explanation:

hi! i think you're asking which of the 2 teams' points added together equal 100. if so, it would be blue and black because 76 + 24 = 100.

broken down: 70 + 20 = 90, 6 + 4 = 10, 90 + 10 = 100 :)

hope i understood this right!

6 0
3 years ago
Thank you to all the people who helped! :)
ira [324]

Answer:

Oh my gosh!

Step-by-step explanation:

Good job, nice!

4 0
3 years ago
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User: Translate the following words to algebra symbols, using "n" as the variable. Seven is two less than twice a number.
muminat
7 = 2n - 2

n= a number so twice a number is 2n and 7 is 2 less than twice this number.
7 0
2 years ago
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