Statins are used to keep cholesterol in check and are a top-selling drug in the U.S. The equation:
S−1.4x=5.4
gives the amount of sales (S) of statin in billions of dollars x years after 1998. According to this equation, how much will/did people in the U.S. spend on statins in the year 2015?
To find out how much people in the U.S. spent on statins in the year 2015, we need to substitute the value of x as 17 (since 2015 is 17 years after 1998) into the given equation and solve for S.
The equation provided is: S - 1.4x = 5.4
Substituting x with 17:
S - 1.4(17) = 5.4
Now, we can simplify:
S - 23.8 = 5.4
To isolate S, we'll add 23.8 to both sides of the equation:
S = 5.4 + 23.8
S = 29.2
This means that people in the U.S. spent approximately $29.2 billion on statins in the year 2015.