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Tutors Answer Your Questions about Average (FREE)
Question 20594: Walt is mixing fruit punch for a party. He combines 1 gallon 2 quarts 3pints of orange juice, 1 gallon 3 quarts 7 pints of pineapple juice and 1 gallon 3 quarts 3 pints of gingerale. What is the total liquid measure of the punch?
Click here to see answer by GuessWho(10)   |
Question 26714: Hi, my name is Marissa.
I was wondering if you could show me how to solve this problem?
Okay it says, Use P=4s to find the perimeter of each square
#1. s= 12ft.
Please help I really don't understand, Thanks Marissa
Click here to see answer by askmemath(368) |
Question 28831: A total of 50 juniors and seniors were given a math 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 josmiceli(3013) |
Question 30303: This is a weighted average problem. Hope I chose the right section....
boat number one leaves the pier at 9am at 8 knots. 1/2 hour later boat number two leaves the same pier in the same direction at 10 knots. What time will boat two overtake boat number one? I have examples in my book but they are going in different directions and it doesn't work with the same type of formula for me. Thank you!!!!
Click here to see answer by checkley71(8405) |
Question 30304: Please, I have had a real problem figuring out this one. it is a weighted average. At 7am Brooke leaves home to go on a business trip driving 35mph. 15 minutes later Bart discovers that she forgot her materials. He drives 50mph to catch up with her. Bart is delayed 30 minutes with a flat tire. When will he catch up with Brooke? I really don't understand how the 1/2 hour figures in or how to calculate the speed to catch up......HELP!
Click here to see answer by Paul(988) |
Question 30305: Two cyclists begin traveling in the same direction on the same path. One travels 20mph and the other at 14mph. After how many hours will they be 15 mile apart. I'm confused on where to begin. I got mixed up with them going in the same direction. thank you so much for your help, I'm feeling lost.
Click here to see answer by Paul(988) |
Question 30307: This problem is a weighted average from my book. I managed to work quite a few and this one has me stumped. Please help. Pablo is driving 40mph. After he has driven 30 miles, his brother Rick starts driving in the same direction. At what rate must Rick drive to catch up with Pablo in five hours?
Thank You So Much.
Click here to see answer by Paul(988) |
Question 30393: Hello, I have a problem I can't figure out. A litre of cream has 9.2% butterfat. How much skim milk containing 2% butterfat should be added to the cream to obtain a mixture with 6.4% butterfat. I'm not sure what to use as the variable. Please help.
Click here to see answer by checkley71(8405) |
Question 31221: My son has given me this problem to solve as a practice to a test.
A field trip cost $960 in total. 10 students are not able to attend so it will now cost the remaining students, who are going, an extra $16 each. How many students are going on the trip? I am able to give him the answer to the question but I can't figure out how to write down the question in an algrebra form nor can I remember how to solve it. Can you please help me? Thank you
Click here to see answer by Paul(988) |
Question 31703: I would just like to know how to get an average of numbers I have tried to understand it but it's too hard and confusing I asked my teacher to help me but I cant stay after school so when you get around to it I would like you to show me how to get an average,thank you
Click here to see answer by Cintchr(475) |
Question 32523: At 8am John leaves his home on a trip driving 40mph. 15 minutes later Jane discovers that he had forgotten his papers. She drives 60mph to catch up with him. She is delayed 30 minutes. When will she catch up with John? I have had one like this before and cannot remember how it is worked, the 30 min delay and the 15 minutes later have me all messsed up. Help please.
Click here to see answer by Paul(988) |
Question 32522: Help please....Some brands of grapefruit juice are only 10% juice. Other brands are 40% juice. How much of each kind of juice should be mixed together to form 5 gallons of punch which is 25% juice?
I've tried this one several times and am confused. Thank You
Click here to see answer by mukhopadhyay(490) |
Question 35281: Josh got a score of 67 on his first math test and a score of 78 on his
second math test. Each of these tests is worth 25% of his final grade. His
third math
test is worth 50% of his final grade. What score must Josh get on his third
math test in order to have a final grade of 85?
Click here to see answer by narayaba(40) |
Question 38107: So I would think that the average of4,2,-3,6,5,-3,-2,0,-1,-4,3 would be .636363 but the tester said it is 1.18 no ClUE! I came up with an answer of 1.18 by adding only the negative numbers and dividing by the whole total of numbers! but WHY! and is that the way it is supposed to be done.
Click here to see answer by josmiceli(3013) |
Question 38102: So I would think that the average of4,2,-3,6,5,-3,-2,0,-1,-4,3 would be .636363 but the tester said it is 1.18 no ClUE! I came up with an answer of 1.18 by adding only the negative numbers and dividing by the whole total of numbers! but WHY! and is that the way it is supposed to be done.
Click here to see answer by checkley71(8405) |
Question 39220: Hope I'm in the right section!!!! This seems like a variation of an average problem. It is a very basic problem but for the life of me I can't find the equation to solve this problem ( even when I have the correct answer at hand )
Sam makes 20 drinks in 5 minutes , Sue makes 20 drinks in 10 minutes, and Jack makes 20 drinks in 15 minutes. If they work together how long will it take them to make 20 drinks????? ( answer listed as 2 min. 44 sec. ) what formula is used to solve this??
Click here to see answer by Nate(3495) |
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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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