Question

Jack bought 4 dozen eggs at $10 per dozen. 6 were broken. what percent of his money goes to waste

Answer 1

So, if he has 4 dozen eggs, ten dollars per dozen, he has spent $40 on 48 eggs. This means the cost of one egg = 48/40. This can simplify to 6/5 which is equal to $1.20. This means the value of one egg is $1.20, including the broken ones! So if six were broken, we multiply 1.20 x 6 which equals $7.20!

Use this "formula" to help find percentages

Part/Total = %( Percentage )/ 100

Now that we know how much money has gone to waste, we can plug in the known values into this "formula."

7.2/48 = x/100

Solve accordingly; cross multiply, 720 = 48x; divide both sides of the equation by 48 to isolate the variable, 720/48 = 48x/48; now you have your final answer which is:

15 = x; going back to the "formula" this means 15% of his money has gone to waste. I hope this helped! :)