Tutors Answer Your Questions about Age Word Problems (FREE)
Question 130825: The sum of Carl's and Patricia's ages is 30. Thirteen years ago, Patricia was three times as old as Carl. How old is each now.
This is one of the many questions on my homework assignment. I have no clue how to figure out these problems. Please help me learn to set it up correctly.
Click here to see answer by awang1996(50) |
Question 138992: A paleontologist discovers a fossil and wishes to determine its age. This can be done by measuring the amount of carbon-14 that is contained in the fossil. It is known that the decay of carbon-14 can be modeled with the exponential decay function . The paleontologist discovers that the fossil contains 70% of its original amount of carbon-14. Assume that the half-life of carbon-14 is 5600 years and determine the age of the fossil.
Click here to see answer by scott8148(6628)  |
Question 139492: 1. The sum of the ages of John and Jacob is 20 years. Two years from now , one will be thrice as old as the other then. Find their present ages.
2. The sum of the ages of Manny and Dennis is 47 years. Seven years ago, Manny was twice as old as Dennis was then. How old is each now?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 139565: when grandpa was over fifty but less than eighty, he told a friend, "each of my sons has as many sons as brothers, and the number of my years is exactly that of the number of all my sons and grandsons." how many sons and grandsons does grandpa have?
Click here to see answer by frostusna(7) |
Question 140380: Aunt Amelia had been a good schoolteacher in the days of the little red schoolhouse, and she still remembered.
"That's a big secret, but you can figure it out if you really want to know, she told Tony in reply to his question. If you switch the two figures of my age, reverse their order, you'll get a third of what my age was five years ago. You try!"
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 144256: john is 3 times the age his son will be next year. his wife is 20 years older than her son is this year. there combined ages total 71. how old is each person.
this is a puzzle which my father and i cant agree on. we are both mathamatically minded but disagree about the answer. he says it must be possible to answer using algebra and came up with ,john 31, wife 30 and son 10. my point is in the first sentence (sons age +1)x 3 he worked on the basis (sons age x 3) +1, here we disagree. i have tried various routes to the answer assuming there is some sort of trickery in the wording but cannot find an answer other than (son 9 now therefore could be 11 at some point next year) (therefore dad could be 33)(mother 20 years older than son is this year could be 9+20=29)therefore totalling 71. i would be dissapointed if there were no logical mathamatical answer and that it just word trickery. i would rather be wrong than dissapointed.
Click here to see answer by scott8148(6628)  |
Question 144256: john is 3 times the age his son will be next year. his wife is 20 years older than her son is this year. there combined ages total 71. how old is each person.
this is a puzzle which my father and i cant agree on. we are both mathamatically minded but disagree about the answer. he says it must be possible to answer using algebra and came up with ,john 31, wife 30 and son 10. my point is in the first sentence (sons age +1)x 3 he worked on the basis (sons age x 3) +1, here we disagree. i have tried various routes to the answer assuming there is some sort of trickery in the wording but cannot find an answer other than (son 9 now therefore could be 11 at some point next year) (therefore dad could be 33)(mother 20 years older than son is this year could be 9+20=29)therefore totalling 71. i would be dissapointed if there were no logical mathamatical answer and that it just word trickery. i would rather be wrong than dissapointed.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 144468: A man and his brother have a combined age of 48 years. 12 years ago, the man was 5 times as old as his brother. How old is the man? How old is the brother?
'a' represents the man's age now. Type in an equation that solves for 'a'.
Click here to see answer by vleith(2983) |
Question 144721: A DOUBLE BIRTHDAY:
"Your birthday today and also your son's! That's amazing. How old is he now?"
Bob smiled. "I'll tell you with fractions. One over his age, plus one over my age, makes one over seven. That's one-seventh, of course."
So what were their respective ages?
Click here to see answer by solver91311(24713)  |
Question 144771: James is five years old now and Emma is four years older.
Form a relevant equation and use it to find out how many years it will take until James' and Emma's ages in years, multiplied together, make 725 years.
Click here to see answer by nabla(475) |
Question 146022: I am learning chapter 3 section 6, which is on "steps for solving word problems". The objective of the section is "to learn the four basic steps for solving word problems, and, to solve word problems involving one number".
I have already learned the four-step approach: read, plan, solve, and interpret; however, I have gotten completely lost int number 14. The problem i am having difficulty writting into an equation is under the "written exercises" section "a".
The directions given for problems 1-20 are: Solve each word problem.
I assume immediately to use what I have learned so far in the chapter, the four-step approach: read, plan, solve, and interpret. All problems numbers 1-13 where a breeze; I rewrote the word problem, read it over again, iscolated the single variable, solved, reread the problem checked my equation, and plugged my answer into the equation to make sure my answer was correct. But when I got to number fourteen I was completely lost. The problem is:
14) Eight times Betty's age increased by 3 times her age is 110. How old is Betty?
My shown work:
14) Eight times Betty's age increased by 3 times her age is 110. How old is Betty?
Let b = age of Betty

After that point I have no knowledgeable decision as of what to do next, and whether or not I am working this out properly. If anyone could help me figure out what I am probably doing wrong, or what I should do next in order to completely solve this equation, that would be wonderful, thank you so much in advance, I hope I gave enough information for better understanding of the question and everything in context. Thank you.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 146669: Five divas waltzed into our church one Sunday.
Each one of them dressed to the nines.
Niecy, Maria, Marissa, Jacqueline, and Clementine.
Niecy beats Maria's age twice, so it undeniably appears.
Clementine and Jacqueline lag behind Niecy by seven years.
Maria is exactly two years more than Marissa's age thrice.
Tell me how old is each diva, if twenty-two years lie between the five.
Getting stuck on the between part. is it between as in (x-y), or a mean value?
Click here to see answer by stanbon(75887) |
Question 147217: The ages of a man and his son are 40 and 12 respectively.Find:
> how many years ago was the man's age eight times the age of his son?
> how many years hence will the age of man be thrice the age of his son?
Click here to see answer by ptaylor(2198)  |
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