Statins are used to keep cholesterol in check and are a top-selling drug in the U.S.

Question

The equation: S − 1.8 x = 4.7 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 2011? Answer: People in the U.S. will spend ________ billion dollars on statins in 2011.

Answer 1

x = 2011 - 1998

x = 13

S - (1.8)(13) = 4.7

Answer 2

s-1.8x= 4.7

x=years and S= sales

x=2011-1998=13 years

s- 1.8 *13=4.7

s- 23.4=4.7

s= 4.7+23.4

s=28.1 billions dollor

Answer 3

S-1.8x=4.7

X= years

X=2011-1998=13 years

S- 1.8 (13)=4.7

S-23.4=4.7

S=28.1 Billion Dollars