this is because 15 is 1/4 of a hour and 7 and a half is half of 15 if you spend 7 and a half on all homework assignments you will use up 45 minutes or 3/4 of a hour
Now in this scenario, they scored 45 points from three-point baskets. This means they got 15 baskets. Now we can convert this into ratio form and solve using cross multiplication:
5/7=15/x
5x=15*7
x=21
They had 21 three point tries. Hope this helps :) lmk if you need more help.
