Lison and her family went out to dinner to celebrate the end of the summer. alison agreed to pay the tip from the money she earned from her summer job. the total cost of the meal was $50.00. alison left $9.00 for the tip. what percent tip did alison leave?

There is multiple ways to answer a problem like this, but I will show you one. First, you must see how many times the total number will go onto 100. In this case, our total number is 50. 50 times 2 is 100. Then, we multiply the number we are trying to make a percentage. That number is 9, because she gave 9 dollars. We must multiply 9 by the same number we did to 50. 9 times 2 is 18, therefore the answer is 18%.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.