Camille is working on her homework.she spends 20% of her total homework time on Science. If she spends 18 minutes working on Science, how many minutes dose she spend on her homework in all?
If 18 minutes is 20% of the work time then you will have to get the 20% to 100% so i divided 20 by 100 and that got me 5 so I put 5 times 18 then that got me 90.