a survey was conducted to determine the food choices of the 80 students at a picnic. the types of picnic…
a survey was conducted to determine the food choices of the 80 students at a picnic. the types of picnic foods are shown in the circle graph. based on the circle graph, how many more students chose pizza than students who chose salad? a 8 b 16 c 32 d 24
Answer
Explanation:
Step1: Calculate number of students who chose pizza
The percentage of students who chose pizza is 30% and the total number of students is 80. So the number of students who chose pizza is $80\times30%=80\times0.3 = 24$.
Step2: Calculate number of students who chose salad
The percentage of students who chose salad is 10% and the total number of students is 80. So the number of students who chose salad is $80\times10%=80\times0.1 = 8$.
Step3: Find the difference
Subtract the number of students who chose salad from the number of students who chose pizza. $24 - 8=16$.
Answer:
16