Eight white balls and twenty black balls are in a bag. What is the probability of drawing a black ball in one draw?

1

2/5

5/7

y varies inversely with x. If x is 6.4 when y is 1.5, what is k, the constant of inverse variation? Round your answer to the nearest hundredth, if necessary.

At what speed in miles per hour will a bicycle travel if the rider can cause the 26-inch diameter wheel to rotate 90 revolutions per minute

Multiply. (2x2 - 4x) (6x² - 5x)

At east school each classroom has an average of 22 students at west school each of the 42 classroom has an average of 23 students how many more students are at east school than west school

Is 1/2 6/10 come from a true proportion?

5. Imagine dropping a soccer ball. The first bounce will be highest, and each bounce after that will be lower until the ball stops bouncing. Describe the energy changes that take place and explain how energy is conserved.

Which equation represents a circle with a center at (-4, 9) and a diameter of 10 units? (X-92 + (y + 4) 2 = 25 (x + 4) 2 + ( - 92 = 25 O (X - 9) 2 + (x + 4) 2 = 100 (x + 4) 2 + (y - 92 = 100

The initial quantity at T = 0 is 1000z the quantity grows by a factor 3%. What is the quantity at T=5?

The 5th grade is getting a special lunch to celebrate the end of first grading period. The cafeteria manager is planning to buy 0.3 pound of turkey for each student. If turkey is on sale for $0.

W is 15% of x Y is 3/5 of x Find the ratio w:x:y