Problem Solving With Percentages
The bottom right sector shows that vanilla made 29% of the profits in 2002.The bottom left sector shows that strawberry made 30% of the profits in 2002. In the Fall 2002 semester, what was the ratio of freshmen to seniors at the college? If the number of sophomores in the Fall 2002 semester was 20% higher than the number of sophomores in the Fall 2001 semester, how many sophomores were enrolled in Fall 2001? If the areas of sectors in the circle graphs are drawn in proportion to the percentages shown, what is the measure, in degrees, of the central angle sector representing the percentage of juniors?
Note that if you had started with 12 to 40, this would be incorrect.
Perhaps you thought 18 was the percent and 125 was the base.
The correct percent fraction for the proportion is Jeff has a coupon at the Guitar Store for 15% off any purchase of 0 or more.
It is a good idea to be comfortable working with percents, you never know when you will be confronted with them. As mentioned above, since we are still problem solving, we will use the exact same four step process we used in Tutorial 15: Introduction to Problem Solving.
To refresh your memory, here they are again: It is made up of a circle cut up in sectors.