Question 760476: Brad Warden spent 30% of his allowance on snacks, 40% on a book and had 45.00 left. How much is his allowance? Answer by ramkikk66(644) (Show Source):
You can put this solution on YOUR website! Let his total allowance be x. In percentage terms, this is 100%.
He has already spent 30% on snacks, 40% on book i.e. 70%.
Hence what is left of the allowance is 100% - 70% = 30%
This is given to be 45.00.
i.e. x * 30% = x * 0.3 = 45
You can solve for x by dividing both sides of the above equation by 0.3.
Total allowance = 150.00