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Tutors Answer Your Questions about Average (FREE)
Question 77769This question is from textbook 
: 1.The average of the numbers 5,9,10,13 and a equals 11. Find the value of a.
2. Express the following in the form a+bi, where a and b are real numbers
3+i/1+2i
This question is from textbook
Click here to see answer by albert543(2)   |
Question 91479: Statistics. In a weekend baseball tournament, Joel had 4 hits in 13 times at bat.
That is, he hit safely of the time. Write the decimal equivalent for Joel’s hitting,
rounding to three decimal places. (That number is Joel’s batting average.)
Click here to see answer by stanbon(26297) |
Question 91609: Hi! I was wondering if you can help me solve this problem please:
A total of 50 juniors and seniors were given a mathematics test. The 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70 What was the average score for all 50 students who took the test?
Click here to see answer by stanbon(26297) |
Question 93548: Need to find the average of a percentage based on other variables:
I have 1 cup of apple juice that is 50% apple juice.
I want to add 2 more cups of apple juice to the 1 cup, but it is 75% apple juice.
What is the average percent of apple juice when I add it to the 1 cup
a=1 cup
(a's percentage) a1=50%
b=3 cups
(b's percentage) b1=75%
IF a=b then you would add a1 + b1 then divide by 2 (62.5%)
if a1=b1 then the percent of apple juice would be the same
Click here to see answer by stanbon(26297) |
Question 93779: After a test, a teacher worked out the average mark for her class of 10 pupils. It was 81%
One of the pupils scored only 27%, which was much less than any of the other marks.
The teacher decided to work out a new average, leaving out the lowest mark. What was the new average?
Click here to see answer by Nate(3495) |
Question 93779: After a test, a teacher worked out the average mark for her class of 10 pupils. It was 81%
One of the pupils scored only 27%, which was much less than any of the other marks.
The teacher decided to work out a new average, leaving out the lowest mark. What was the new average?
Click here to see answer by jim_thompson5910(13794) |
Question 94506: Not sure on this word problem
Adult tickets for a play cost $20 and child tickets cost $16. If there were 27 people at a performance and the theater collected $464 from ticket sales, how many adults and how many children attended the play?
Click here to see answer by scott8148(3385)  |
Question 94509: I am just lost on this one
HElp
A small company produces both doll houses and sets of doll furniture. The doll houses take 3 hours of labor to produce, and the furniture sets take 8 hours. The labor available is limited to 400 hours per week, and the total production capacity is 100 items per week. Existing orders requare that at least 20 doll houses and 10 sets of furniture be produced per week. Write a system of inequalities representing this situation, where x is the number of doll houses and y is the number of furniture sets. Then graph the system of inequalities.
Click here to see answer by ankor@dixie-net.com(6693)  |
Question 95683: explain why there is no value of x for which the expressions x + 3 and x + 4 are equal?
My 7th grade son has this question on one of his worksheets and sadly I am unable to help him.
Thanks so much in advance for your help
Click here to see answer by checkley71(8405) |
Question 95683: explain why there is no value of x for which the expressions x + 3 and x + 4 are equal?
My 7th grade son has this question on one of his worksheets and sadly I am unable to help him.
Thanks so much in advance for your help
Click here to see answer by Edwin McCravy(2922) |
Question 95704: To qualify for the semi-finals in a bowling tournament, a bowler must have at least a 160 average for five games. Suppose the scores for your first four games were 172, 150, 148, and 162. What is the lowest score you can bowl in the fifth game and still qualify for the semifinals?
Click here to see answer by checkley71(8405) |
Question 95704: To qualify for the semi-finals in a bowling tournament, a bowler must have at least a 160 average for five games. Suppose the scores for your first four games were 172, 150, 148, and 162. What is the lowest score you can bowl in the fifth game and still qualify for the semifinals?
Click here to see answer by stanbon(26297) |
Question 96230: Two teams work in a factory making couches. Team A can make a couch in 3 hours less than team B. Working together, they canmake a couch in 2 hours. How long does it take each team working alone to make a couch?
Team A:_____________ Team B:___________
Click here to see answer by stanbon(26297) |
Question 96242: A farmer has chickens and rabbits on his farm - There are 22 heads and 72 feet - how many chickens and how many rabbits are there
Rabbits = X Chickens = Y
4 X + 2Y = 72
-2 (x) + -2 (Y) = 22
-2 =44
72-44= 28
2X = 28
x= 14
Y= 8
Thankn You
Click here to see answer by stanbon(26297) |
Question 98137: I HAVE A PROBLEM THIS IS THE QUESTION:
HOW MANY CARS ARE PRODUCED ON AVERAGE BY BOTHS COMPANIES IN 20 YEARS?
COMPANY X = 1250 CARS PER YEAR.
COMPANY Y = 2500 CARS PER YEAR.
ANSWERS:
A: 3750
B: 12500
C: 25000
D: 37500
Click here to see answer by scottnascar(12) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765
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