What is probability of randomly selecting a marble and getting black or red? a bag contains 5 black marbles, 10 red marbles, and 20 blue marbles?

An empty 190 kg elevator accelerates upward at 1.8 m/s 2. The acceleration of gravity is 9.8 m/s 2. What is the tension in the cable that lifts the elevator cab

The prize of a basketball glove is 8$more than half the price of spikes. The The love of cost $54. Solve the equation S/2+8=54 to find out how much that spikes cost

Use emilimination to solve 2t 3n=9 and 5t-3n=5

Problem Page For her exercise today, Maya plans to both run and swim. Let r be the number of laps she runs and let s be the number of laps she swims. Each lap she runs takes her 4 minutes, and each lap she swims takes her 2 minutes.

A random sample of 240 park users was asked if they go to the park more often on week days or the weekend. The results are shown in the table.

Which algebraic expression represents "the class was divided into 6 equal groups"?

Solve for x in the equation x2 + 2x + 1 = 17 x=-11.15 x=-17 17 x=-2+2-6 x=-17 18

Find the sum of the first 25 terms. 2,8,14,20

Are the expressions 5 to the 2 power and 2 to the fifth power equivalent? explain how do you know

A sample of 3 different calculators is randomly selected from a group containing 17 that are bad and 36 that are good.