In a math class with 21 students, a test was given the same day that an assignment was due. There were 14 students who passed the test and 16 students who completed the assignment. There were 12 students who passed the test and also completed the assignment. What is the probability that a student chosen randomly from the class passed the test or completed the homework?

1.53125

Step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

where are the graphs?

step-by-step explanation: