MATH 110 Lecture 29: Ratio and Proportion
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Here is an example of calculating ratios and proportions in word problems. First, circle what you"re asked to find how many days. One simple way to work this problem is to set up a (cid:1688)framework(cid:1689) (proportion) using the categories given in the equation. Now simply plug into the equation for each instance. Therefore, it will take the original proportion before solving. ) or 8. 05 days to type 230 pages. (you may have simplified. Here is an example of calculating percents in word problems. Thirty students are awarded doctoral degrees at the graduate school, and this number comprises 40% of the total graduate student body. First, circle what you must find in the problem how many graduate students. Now, in order to plug into the percentage equation try rephrasing the question into a simple sentence. Notice that the 30 sits next to the word is; therefore, 30 is the (cid:1688)is(cid:1689) number.
