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mylen [45]
3 years ago
7

What is the inverse of the function f(x) = 2x + 1?

Mathematics
2 answers:
klemol [59]3 years ago
6 0

y=0.5(x−1)







Hope i helped


harkovskaia [24]3 years ago
4 0

y=2x+1, replace x by y and vice versa

x=2y+1 now solve for y

y=0.5(x-1)

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Let red marbles = X.

The probability is 1 out of 5, written as 1/5

1/5 in terms of red marbles is equal to the number of red marbles divided by 5x, where 5x is the total number of marbles.

1/5 = x/5x 

Now you have 5x total marbles, x red and 4x blue. 

Add 5 more red and the new probability is: 

(x+5)/(5x+5) = 1/3 

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Now solve for x:

Subtract 3x from both sides:

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