Question

4. A total of 120 students attend Top View High School. The ratio of teachers to studen 1:30 a. How many teachers are there at the school? Two-fifths of the students own personal computers. b. How many students do NOT own personal computers? Thirty percent of the students who own personal computers also own play stations. c. What fraction of the students in the school own play stations?​

Answer 1

Answer:

A) 4 Teachers

B) 72 Don't own personal computers

C) 12%

Step-by-step explanation:

A) 120 / 30 = 4

B) 120 / 5 = 24, 24 * 2 = 48, 120 - 48 = 72

C) 30% of 48, 10 percent is 4.8, multiply it by 3 to get the 30 percent, you get 14.4, and the percent is therefore 12%.

Enjoy!