Irina predicted that she would sell 75 books, but she actually sold 95 books. Which expression would find the percent error? Use the table below to help answer the question.
Percent Error
Ratio
Percent error
Item
Books
Approximate value
75
Exact value
95
Error
-20
Absolute error
20
-20
75
(100)
-20
75
20
95
20
95 (100)
)

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Three coins are flipped. what is the probability that there will be at least two tails?

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.