The correct question is;
Ellen has a bag with 3 red marbles and 2 blue marbles in it. she is going to randomly draw a marble from the bag 300 times, putting the marble back in the bag after each draw. what is the best prediction for the number of times that ellen will draw a blue marble?
Answer:
120 times
Step-by-step explanation:
We are given;
Red Marbles = 3
Blue Marbles = 2
Thus;
Total Marbles = 3 + 2 = 5
Probability of of Blue Marbles;
P(B) = 2/5
Total number of Draws = 300
Hence, best prediction for the number of times that ellen will draw a blue marble = 300 x (2/5)
= 120
Thus, prediction is 120 Times that Ellen will Draw Blue Marbles
Answer:
8 1/3, eight and one over three.
Step-by-step explanation:
First lets find the rate by dividing 15 by 2.5 You will get 6 meaning that six people eat 1 pound each. Now lets divide 6 from 6 and 1. This means that 1 person will eat 1/6 of the pounds of the potatoe. Then we can do 50 times 1/6 and we will get 8.3333. This means that Jason needs 8 and 1/3 pounds of potatoes to feed 50 people.
Answer:
125.6 cubic meters
Step-by-step explanation:
To calculate the volume of the cylinder, we will do it as follows:
Vc = Base area * Height
We know that the base of the cylinder is a circle, therefore:
Base area: pi * r ^ 2
replacing we have:
Vc = pi * (r ^ 2) * h
We have r = 2 and h = 10, we replace:
Vc = pi * (2 ^ 2) * 10
Vc = 40 * pi
pi = 3.14
Vc = 40 * 3.14
Vc = 125.6
Which means that the volume of the cylinder is 125.6 cubic meters
Answer:
1) 1 1/8
Step-by-step explanation:
One of the shortest ribbons is 3/8 long, and one of the longest is 1 1/2 long. 1 1/2 minus 3/8 is equal to 1 1/8, because 1 1/2 is equal to 1 4/8, and subtracting 3/8 from that gives us 1 1/8.