A 2015 poll shows the president's approval rating to be 42%, a drastic 31% fall from his approval rating in 2014. What was his approval rating in 2014?

his approval rating in 2014 is 60.9%

Here we assume the president's approval rating in 2014 = x

So,  

42% = x - 31% of x

= x - 0.31·x

= 0.69·x

Now  

Hence, x% = 60.8696 ≈ 60.9%

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The president's approval rating in 2014 is 60.9%

Step-by-step explanation:

The parameters given are;

President's approval rating in 2015 = 42%

President's approval rating in 2015 = 31% less than 2014 president's approval rating

Therefore, whereby the president's approval rating in 2014 = x, we have;

42% = x - 31% of x = x - 0.31·x = 0.69·x

Hence, x% = 42% ÷ 0.69 = 60.8696 ≈ 60.9%

The president's approval rating in 2014 = 60.9%.

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you: : 0

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