Use Proportions to Predict Outcomes Guided Practice.

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Presentation transcript:

Use Proportions to Predict Outcomes Guided Practice

LUNCH If 21 of the 28 students in a gym class consider pizza their favorite lunch food, use this ratio to predict how many consider pizza their favorite lunch food in a school of 220 students. ►W►W►W►Write and solve a proportion. Let p represent the number of students who can be expected to consider pizza their favorite lunch food ►S►S►S►So, about 165 out of 220 students in the school can be expected to consider pizza their favorite lunch food.

READING Scott read 225 pages of a novel in 5 days. At this rate, how many pages can he read in 12 days? ►S►S►S►Set up the proportion. Let p represent the number of pages Scott can read in 12 days. ►S►S►S►So, the value of p is 540. At the given rate, Scott can read 540 pages in 12 days.

SPORTS: Out of 24 students in a gym class, 8 have played golf. Based on these results, how many of the 450 students in the school can be expected to have played golf? ►S►S►S►Set up the proportion. Let g represent the number of students in the school that can be expected to have played golf. ►S►S►S►So 150 students in a class of 450 can be expected to play golf.