Tutors Answer Your Questions about Average (FREE)
Question 565627: The average SAT score of eleven students was 2,ooo. When Mary's score was added to the other eleven scores, the average went up to 2,010. What is the positive difference between her score and the initial average score?
Click here to see answer by ad_alta(240)   |
Question 566416: A stuent received scores of 51, 79, and 57 on their first three tests for a class. There will be a total of four tests for the class and the student hopes to acheive and average score of n in the class. Express the score, S, needed on the fourth test to acheive this average, as a function of n.
Click here to see answer by ankor@dixie-net.com(15746)  |
Question 569105: The earliest mechanical clock appeared around 1350 in europe and would gain or lose and average of 30 minutes per day. After that, accuracy roughly doubled every 30 years. find the predicted accuracy of the clock in the years 1700 and 2000.
Click here to see answer by Alan3354(31518)  |
Question 569105: The earliest mechanical clock appeared around 1350 in europe and would gain or lose and average of 30 minutes per day. After that, accuracy roughly doubled every 30 years. find the predicted accuracy of the clock in the years 1700 and 2000.
Click here to see answer by josmiceli(9817)  |
Question 569356: Ok, my son is has a problem in Algebra, he is in the 9th grade. I can get the answer for him but he need to write it in algebra terms. I never took algebra in school, so if I can tell you the question. can you please tell me how to write it in algebra terms.
Mike just got a phone bill for $27.60. he is charge $.07 per minute for local calls and $.20 for long distance calls. he talked for a total of 320 minutes. How many long distance minutes did he use?
It sounds just like a typical story problem and easy to solve but feel bad that I can't put it in Algebra form
Thanks so much,
Until Next time,
Sue
Click here to see answer by ankor@dixie-net.com(15746) |
Question 572492: To get an A in a course, you must have an average at least 90 points for qty 4 tests. The first 3 test are worth 100 points and the 4th test is also worth 100 points (but it is worth double or counted twice). For the first three test your scores are 87, 92, and 84. What must you score on the final test to receive an A (a 90% or greater average)? Hint: This is equivalent to qty 5 test where you need to score 5 x 90 points or 450 points when adding the five scores (the last test is counted twice).
Click here to see answer by bucky(2189) |
Question 572881: I have tried to work tyhis problem out every which way and just can not figure it out. There does not seem to be an example of this in my book.
Thank You,
Nick
Raquel is mixing lemon-lime soda and a fruit juice blend that is 45% juice. If she uses 3 quarts of soda how many quarts of fruit juice must be added to produce punch that is 30% juice?
Click here to see answer by solver91311(17077)  |
Question 572881: I have tried to work tyhis problem out every which way and just can not figure it out. There does not seem to be an example of this in my book.
Thank You,
Nick
Raquel is mixing lemon-lime soda and a fruit juice blend that is 45% juice. If she uses 3 quarts of soda how many quarts of fruit juice must be added to produce punch that is 30% juice?
Click here to see answer by josmiceli(9817) |
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