Yes. Each can has 5000g. And since there are 10, the cafeteria has 50,000. You divide 50,000g by the serving size(125g) which is 400. So yes. The cafeteria has enough.
c = p(1+r), where c is the total cost, p is the price of the item before tax, and r is the tax rate written as a decimal. This formula comes from the fact that adding a percent tax to the cost of an item takes 100% of the price and adds r% to it; this is why we multiply the price by (1+r).
Since our tax rate is 8%, r = 8% = 8/100 = 0.08. The price of the item is $40. Using this information, we have:
