A student finished 8 of her homework problems in class. If the ratio of problems she finished to problems she still had left was 4:1, how many homework problems did she have total?
Using the ratio we are given 4:1 we can use it to find the amount we need 4/1 = 8/x do cross multiplication (4)(x)= (8)(1) 4x = 8 divide both sides by 4 to isolate the x (it stands for the amount of assignments she still has left) x = 2
So if she finished 8 assignments and still has 2 to do 8 + 2 She has a total of 10 homework problems