two-fifth of the students in a mixed school are boys. if there are 30 girl in the school how many are boys

What is the value of the underlined digit in the number 1,711,799 with the lst 7 being underlined

What is x subtract 75 and that equals 200?

How do you draw a number line of 9/10ths

A plane makes a return journey across the Atlantic Ocean, a distance of 3800 km each way. From west to east the journey time is 6 hours 12 minutes. Because of the jet stream the plane takes 7 hours 18 minutes to fly the same journey east to west.

Angle B = 90 degrees, side BC = 20, angle Y = 90 degrees, and side YZ = 20. What additional information would you need to prove that ΔABC≅ΔXYZ by HL?

A city is building a fence around a rectangular playground. If the perimeter of the playground is 96 feet and the length of one side of the fence is 30 feet, what is the width of the playground?

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given questions. Listed below are the highest amounts of net worth (in millions of dollars) of all celebrities. 1.

A company claims that 5% of its products will be defective. A simple random sample of 300 products contain 10 defective products. What is the probability that 10 or more defective products would have happened by random chance

Students in a college statistics class want to conduct a survey to determine the percentage of students in the school who are willing to pay a fee for participating in extracurricular activities.

Row counted a total of 40 white cars and yellow cars there were nine times as many white cars as yellow cars how many white cars did Ralph account