60 students participated in a survey about pets. 27 have a dog, 15 have a pet cat, and 18 students have no pets at all.
What percentage of the students have a pet?
27 dogs + 15 cats = 42 with pet
%with pets = (42/60)*100 = ?
To find the percentage of students who have a pet, we need to subtract the number of students who have no pets from the total number of students and then divide by the total number of students.
Total students = 60
Number of students with no pets = 18
Number of students with pets = Total students - Number of students with no pets
= 60 - 18
= 42
Percentage of students with pets = (Number of students with pets / Total students) × 100%
= (42 / 60) × 100%
= 0.7 × 100%
= 70%
Therefore, 70% of the students have a pet.
To find the percentage of students who have a pet, we need to first calculate the number of students who have a pet.
We know that 27 students have a dog and 15 students have a cat, which gives us a total of 27 + 15 = 42 students who have either a dog or a cat.
Since there are 60 students in total, and we know that 18 students have no pets, we subtract this number from the total number of students to find the number of students who have a pet:
60 total students - 18 students with no pets = 42 students with a pet
Now that we know there are 42 students with a pet, we can calculate the percentage by dividing the number of students with a pet by the total number of students and multiplying by 100:
(42 students with a pet / 60 total students) * 100 = 70%
Therefore, 70% of the students have a pet.