|
Percent of a number Part III You did it, and you're nearly done! This is the last test for this portion. Now that you can easily find the IS word, the OF word and the percent, you are ready to set up your proportions. They will always look like this: OF IS = Percent 100 THis should make sense to you when you think about it. Percent is out of 100, so we write it that way. Then what is a number out of another number becomes the 'IS' out of OF. OF IS = Percent 100 So let's get started... What is 12% of 400 "OF" value "IS" value 400 x = 100 12 100 Percent "OF" value "IS" value 13% of what number is 52? 52 x = 100 13 100 Percent "OF" value "IS" value 42 is 60% of what number 42 x = 100 60 100 Percent "OF" value "IS" value 56 is what percent of 400? 400 56 = 100 x 100 Percent Let's get you to try...Fill in the missing value: "OF" value "IS" value 78 is what percent of 50? 78 50 = x 100 Percent "OF" value "IS" value 34 is 6% of what number? x = 100 6 100 Percent "OF" value "IS" value Now find more values...fill in all the missing spaces: 53 is what percent of 200? 200 = 100 Percent "OF" value "IS" value 90 is 4% of what number? = 100 Percent "OF" value Is the answer below correct? 42 is 54 percent of what number? "IS" value 42 54 = 100 x Yes No 100 Percent "OF" value Is the answer below correct? What is 120% of 40 "IS" value x 40 = 120 100 Yes No 100 Percent "OF" value Is the answer below correct? 42 is what percent of 4? "IS" value 4 42 = 100 x Yes No 100 Percent Note that once you have the proportion written down, you solve it just like you did all those other proportions! For example: 56 is what percent of 23? 56 23 = 100 x Use your calculator to solve this and round to the nearest tenth. x = 56*100 23 Hurray! You've learned how to calculate the percent of a number. Now you may begin your worksheet! Remember you must show each proportion and your solution (x = __*__) __ Once you've shown your work, you can then use a calculator to get to the final answer. Good Luck!! |