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Alex777 [14]
3 years ago
5

Every day, there are 4 times more likes on an internet video of a horse which is modeled by the function c(n) = (4)n − 1, where

n is the number of days since the video posted. On the first day, there were 100 likes. What is the function that shows the number of likes each day?
Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0

Answer:

  f(n) = 100·4^(n-1)

Step-by-step explanation:

The given function c(n) is apparently the multiplier for n days. Its value is 1 for n=1, so we simply need to multiply c(n) by 100:

  f(n) = 100·c(n) = 100·4^(n-1)

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aul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shirt
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Set up a system of equations:


\text{Total shirts bought}

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x represents how many tee shirts were bought, and y represents how many long sleeve shirts were bought.


For the first equation, subtract y from both sides to get x by itself:


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We'll now use substitution. Since x is equal to a value, we can substitute this value for the other equation:


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Distribute the 10 to both terms in parentheses:


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Combine like terms:


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Subtract 90 from both sides:


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Divide both sides by -3 to get y by itself:


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Now you have a value for y. Input this value into the first equation:


x + 6 = 9


Subtract both sides by 6 to get x by itself:


x = 3


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The answer is B. 3 tee shirts and 6 long sleeve shirts.

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