3.
The student council at Hebron Middle School was surveyed to decide what types of topping to order for the pizza to be served at the end of the school year picnic. 40 students were surveyed. The results are displayed in the graph below.
If 320 students are expected to attend the picnic, how many can be expected to choose cheese pizza?
According to the graph, 40% of the students surveyed chose cheese pizza topping.
To calculate how many students can be expected to choose cheese pizza out of the 320 expected attendees, we can use the following calculation:
Number of students choosing cheese pizza = (percentage of students choosing cheese pizza/100) * (total number of expected attendees)
Number of students choosing cheese pizza = (40/100) * 320 = 0.4 * 320 = 128
Therefore, 128 students can be expected to choose cheese pizza.
To determine how many students can be expected to choose cheese pizza, we need to analyze the graph provided. However, since no graph is mentioned in the question, we cannot provide an answer.
To determine how many students can be expected to choose cheese pizza, we can use the information from the graph. Let's analyze the graph and compute the number accordingly.
The graph displays the results of the survey conducted among the student council at Hebron Middle School. It shows the percentages of students who prefer each type of topping on their pizza.
To solve the problem, follow these steps:
1. Identify the percentage of students who prefer cheese pizza. In the graph, under the "Cheese" section, it is shown as 20%.
2. Calculate the number of students who prefer cheese pizza by using percentages. Multiply the percentage (20%) by the total number of students surveyed (40 students), as follows: 20% * 40 students = 0.20 * 40 = 8 students.
3. Calculate the expected number of students who will attend the picnic but haven't been surveyed. Take the total number of expected attendees (320 students) and subtract the number of surveyed students (40 students), as follows: 320 students - 40 students = 280 students.
4. Find the expected number of students who prefer cheese pizza from those who haven't been surveyed. To do this, multiply the number of un-surveyed students (280 students) by the same percentage of students who prefer cheese pizza (20%), as follows: 20% * 280 students = 0.20 * 280 = 56 students.
5. Sum up the number of surveyed students who prefer cheese pizza (8 students) and the expected number of un-surveyed students who prefer cheese pizza (56 students), as follows: 8 students + 56 students = 64 students.
Therefore, based on the survey results and the total expected attendance, it can be expected that 64 students will choose cheese pizza at the school picnic.