Math Answers

nine weeks into the 2009 major league baseball season , nyjer morgan of the Pittsburgh pirates had been up to bat 175 times. he got hit 2/7 time. how many hits did nyjer have?

Two surveyors A and B left P at the same time.A moved at a speed of 6km/hr on a bearing of 043degrees,while B moved at a speed of 4.5 km/hr on a bearing of 115degrees.calculate the distance between A and B after 4 hours and the Bearing of B from A

a welder must construct a beam with a total length of 32 7/8 in. if he has already joined a 14 1/6 in beam with a 10 3/4in beam, find the length of a third beam needed to reach the total length.

for homework, bill's math teacher assigned 42 problems. he finished 5/6 of them. How many problems did he do?

when rosa opens the kitchen cabinet, she finds three partially filled bags of flour. one contains 2/3 cup, another contains 1 1/4 cups, and the third contains 1 1/2 cups. how much flour does she have all together?

mr burnett plans to have a picture measuring 18 3/8 by 12 1/4 custom framed. the frame he chose 2 1/8 wide. what will the new length and width of the picture plus the frame?

for valentines day, alex wants to sew a teddy bears for her friends. each bear requires 1 2/3 yd of fabric. if she has a 7 yd of material, how many bears can alex make? how much fabric will be left over?

nine weeks into the 2009 major league baseball season, nyjer morgan of the Pittsburgh pirates had been up to bat 175 times. he got a hit 2/7 of the time. how manty hits did nyjer have?

6 Find the mode of 3,6,10,13, 14,17,19 and 22
20
17
20
13
7 Find the median of 3,19, 6,17,10,13, 14, and 22
13
20
17
13.5
8 calculate the arithmetic mean of 3,6,10,13, 14,17,19 and 22
20
15
13
17
9 The mean of four numbers is 5 and the mean deviation is 3. Find the fourth number if the mean deviation of the first three numbers is 2.
12
20
11
15
10 From the set A={3,
2√,23√,9√,7√
2,23,9,7
},a number is selected at random. Find the probability that is a rational number.

25
25

35
35
3
4

1 A die has four of its faces coloured white and the remaining two coloured black. What is the probability that when the die is thrown two consecutive times, the top face will be white in both cases ?

13
13

49
49

920
920

13
13
2 Three balls are drawn from a box containing 6 red marbles, 4 white marbles and 5 blue marbles. Find the probability that they are drawn in the order: red, white, and blue if each ball is drawn with replacement

2225
2225

1225
1225

4225
4225

8225
8225
3 When a die is thrown, what is the probability that the number is greater than 1, given that it is odd?

23
23

35
35

45
45

13
13
4 Giving that mean=34, median= 32 and standard deviation as 12. Calculate the Pearson's coefficient of skewness
0.5
0.4
0.3
1.6
5 Calculate the standard deviation of the marks: 2,3,6,2,5,0,4,2.
1.5
1.7
1.8
1.9