There were 35,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paper
back copy was sold until the last copy of the novel was sold, nine times as many paperback copies as hardback copies were sold. If a total of 448,000 copies of the novel were sold in all, how many paperback copies were sold
cuz, x equals the number of minutes so use the y slope formula
0.10(x)+the intercept = y 0.10(350)+the intercept = 84 35+the intercept = 84 the intercept = 49 so the equation is 0.10(x)+49 = y or 1/10(x)+49 = y 1/10(300)+49=y 30+49=y 79=y so the answer is 79 dollars