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Tutors Answer Your Questions about Numbers Word Problems (FREE)
Question 130041: The phone numbers in a certain city consist of the prefix 123, 234, and 345, followed by four distinct digits from 0 to 9. How many such phone numbers are possible? possible answers: a)19 b)102 c)5043 d)15120 e)604800
Click here to see answer by checkley71(8405)  |
Question 130187: I have the following problem, not positive that I've figured it right. Could someone help me please. Thank you. When the reciprocal of three times a number is subtracted from the reciprocal of the number, the result is one-sixth. Find the number. I came up with x+3x-x=1/6 x=1/18 Is this correct? Thank you for your help.
Click here to see answer by solver91311(5070)  |
Question 130185: I have a world problem, not sure if I came up with the right answer. Could you help please. The reciprocal of a number plus the reciprocal of twice the number equals 1/2. Find the number. I have x+2x=1/2 x=1/6 Is this right?
Click here to see answer by josmiceli(3003)  |
Question 131307: Sandy held a garage sale during which she charged a dime for everything, but accepted a nickel if the buyer bargained well. At the end of the day she realized she had sold all 12 items and raked in a grand total of 95 cents. She had only dimes and nickels. How many of each did she have?
Click here to see answer by solver91311(5070)  |
Question 131386: I have a homework problem that I can't seem to solve. Could someone help me please. thank you. Sam accepted a job to brick a new home. He calculated that he can complete the job in 4 hours. He hired a trainee to assist him. He has seen the trainee work. He estimates that the trainee working alone would take 6 days to complete the job. How much time should the two of them working together need to brick the house?
Click here to see answer by stanbon(26249)  |
Question 131389: I following problem has me confused. I came up with the answer 4.5, I don't think it's right. Could I have some assistance in solving it. thank you. One irrigation system needs about 3 times as long to complete a job as another irrigation system. When both systems operate at the same time, the job can be completed in 9 hours. How much time is required for the faster system to complete the job by itself?
Click here to see answer by TakeATuition.com(57)  |
Question 131553: 561 students, girls are 15 more than twice the number of boys.
how many girls are there and how many boys. this is not from a text book. I did it this way.
2x+15=561 but my answer did not seem right, there is something I am missing.
Click here to see answer by solver91311(5070)  |
Question 131553: 561 students, girls are 15 more than twice the number of boys.
how many girls are there and how many boys. this is not from a text book. I did it this way.
2x+15=561 but my answer did not seem right, there is something I am missing.
Click here to see answer by josmiceli(3003)  |
Question 132592: Problem: A designer, attempting to arrange the characters of his artwork in the form of a square grid with equal number of rows and columns, found that 24 characters were left out. When he tried to add one more row and column, he found that he was short of 25 characters. Can you find the number of characters used by the designer?
I don't understand if you are short 24 characters at first and then add another row and column, how can you then be short 25 characters? Maybe it is the wording "short of 25 characters that is throwing me off.
Thanking in advance for any help on this. It is due today and I cannot figure it out and I stayed up until 3:00AM yesterday working on it. Thanks again!
Click here to see answer by scott8148(3382)  |
Question 133189: if two thirds of a number is added to one half of that number ,the sum is 35 find the number.
if one third of a number is subtracted from three fourths of that number the difference is 15,what is the number.
one fourth of a number is subtracted from two fifths of a number the difference is three find the number.
Click here to see answer by vleith(1977)  |
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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, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195
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