Math TEKS 7.6G Using Graphs to Solve Problems

Math TEKS 7.6G Using Graphs to Solve Problems

The manager of a cafeteria took a poll of 150 students to find the most popular lunch. The manager drew a circle graph to display the data. How many more students chose spaghetti than corn dogs as their favorite lunch?

• How many chose spaghetti?

• How many chose corn dogs?

To solve this problem you change the percent to a decimal and multiply by the total number of students.

• 150 • 0.28 = 42 Find the number of students that chose spaghetti.

• 150 • 0.12 = 18  Find the number of students that chose corn dogs.

• 42 – 18 = 24  Subtract the number of students that chose corn dogs from the number that chose spaghetti.

Multiple Choice

Band members are selling magazines to raise $150 for a school dance. The bar graph shows the amount of the sales so far. How much more money do the band members need to raise?

• $10

• $20

• $130

• $280

Multiple Choice

Rachel collects animal figurines. How many more zebras does she need to collect to have more zebras than any other animal?

• 2 zebras

• 3 zebras

• 4 zebras

• 5 zebras

Multiple Choice

Ms. O’Conner took a poll of 80 students to find out how they get to school. How many more students get to school on a bus than in a car?

• 8 students

• 12 students

• 24 students

• 32 students

Poll

How do you feel about your ability to solve problems using a graph?