Tom is one of 9 students. All 9 students compete for President and Vice president. If the winners are randomly selected, what is the probability that Tom is one of the winners? What is the percent chance that Tom is one of the winners?
In a statistics class, the probability of getting an A is .45. In a group of 11 students, find the probability that exactly 7 get As.
Phil hopes to be chosen as one of 16 teenagers to go on a trip. If only 3 teenagers are chosen, find the probability that Phil is one of them.
The probability that any student passes a math test is 14. In a group of 5 students, find the probability that 3 pass.
8 students compete for 2 winning spots on a sports team. Alan is one of the 8 students. If all students are equally likely to win a spot, find the probability that Alan is one of those winners.
x-y=80 and x–y=5. Find the value of x+y.
Find the surface area of a sphere with the volume of 27π.
A factory in Hackensack manufactures T-shirts. The factory has monthly operating costs of $14,000 per month regardless of how many shirts are produced. Additionally, the factory must spend $7.45 for each shirt produced. In July, the total factory costs were $19,000. Approximately how many shirts were produced? Find an expression for C(n) where cost is[…]
9xy+14x=15y-40+100x. Find an expression for y in terms of x.
Line s is perpendicular to line t and passes through (12,32). Find an equation to describe line s.