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

Fill in the Blanks

Sunshine Fitness tracked the usage of cardio equipment to determine how many members used certain pieces of equipment last weekend. The circle graph shows the results. How many of the 500 members that used cardio equipment did NOT use a stepper or treadmill?

Poll

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