There were some fiction and non-fiction books in second-hand bookstore. The number of fiction books was 3/5 of the number of non-fiction books. After an equal number of fiction and non-fiction books were sold, the ratio of the
number of fiction books to the number of non-fiction books left was 5:9. There were 240 books altogether. How many
books were sold altogether?​

l.ln.lln.k.nkl

step-by-step explanation:

step-by-step explanation:

hihi so drawing these 2 triangles is fairly simple. all that's left is finding the height of each one. luckily, we have a side length and an angle, so there is a trig function we can use to solve for the height. the easiest one to use would be tangent, since we have 2/3 things needed to find and the third needed is what we are solving for. tan(73°) * 30 ~= 98.13 and tan(73°) * 35 ~= 114.45