Algebra 1
posted by Zach .
Mary's class took two tests last week. 80% of the class passed the math test, 90% of the class passed the English test, and 72% of the class passed both. What is the probablility that a randomly selected student in Mary's class failed both tests? Express your answer as a percent rounded to the nearest tenth of a percent?
Thanks
Zach
Respond to this Question
Similar Questions

set (math)
A class of 47 students took examination in algebra and geometry. If 29 passed algebra and 26 passed geometry and 4 failed in both subjects, how many passed both subjects? 
math
A professor knows that in her class 37% of the students have passed an Algebra course, 29% have passed an English course, and 21% have passed both courses. If one student is selected at random from this class, find the probability … 
statistics
A professor knows that in her class 37% of the students have passed an Algebra course, 29% have passed an English course, and 21% have passed both courses. If one student is selected at random from this class, find the probability … 
Math
There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test? 
Math
There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test? 
statistics
In class of 125 students, 70 students passed in Math, 56 students passed in Statistics, and 30 passed in both. The probability that a student selected at random from the class, has passed in only one subject is 
Help  Math
A teacher gave his class two quizzes; 80% of the class passed the first quiz, but only 60% of the class passed both quizzes. What percent of those who passed the first quiz also passed the second quiz? 
fractions
In Mr. Johanessen's class, 1/4 of the students failed the final exam. Of the remaining class, 1/3 scored an A. What fraction of the whole class passed the test but scored below an A? 
Math 231
In Mr. Everett's firstperiod class, 18 of 25 students passed the last test. In his second period, 17 of 23 passed. Use the percents to conclude which class did better. Show all work. 
Math
If there is a laws of 40 students and only 85% of the class passed how many passed the test