To solve this question 0.03x+0.05 (6000-x)=220 Solve for x to know How much money was invested at 3% First multiply the values 0.03x+0.05×6000-0.05x=220 0.03x+300-0.05x=220 Second calculate the difference and rearranging the values 0.03x-0.05x=220-300 -0.02x=-80 Divide both sides by-0.02 and divide the values X=-0.02/-80 x=4000 invested at 3% this is the answer of your question
The domain of a certain function are all possible values of x that are applicable to the function or can make the function true. For this certain function, the domain is from the time that the book was released to the time that the sales was also zero due to steady decline in sales.
