Questions on Algebra: Roman numerals answered by real tutors!

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Tutors Answer Your Questions about Roman-numerals (FREE)


Question 563643: 4a^8-20a^6+8a^4
Answer by JBarnum(1826) About Me  (Show Source):
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roman numerals...i think not
take 4a^4 out
4a^4(a^4-5a^2+2)


Question 566092: How do you solve the problem MCMLXI?
Answer by Alan3354(21580) About Me  (Show Source):
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How do you solve the problem MCMLXI?
-----------
Step 1, state the problem.
MCMLXI is not a problem.


Question 557853: Hi, i am having a little trouble with roman numerals.
I was wondering if you can help me count them and write them starting from 1 to 100.
All i know is: 1-I 2-II 3-III 4-IV 5-V
This is all i know.

Answer by Alan3354(21580) About Me  (Show Source):
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Hi, i am having a little trouble with roman numerals.
I was wondering if you can help me count them and write them starting from 1 to 100.
All i know is: 1-I 2-II 3-III 4-IV 5-V
----------
I think you can google that.


Question 429462: What is the representation of 256 base 2, base 12 and base 6?
Answer by JBarnum(1826) About Me  (Show Source):

Question 394134: How can roman numerals be realeted to variables in algebra
Answer by JBarnum(1826) About Me  (Show Source):
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they both use letters to show numerical values


Question 534723: Jay is Y year old, Alex is 10 years older than Jay, Joseph is 3 years younger than Jay, Frank is twice the age of Jay.
write down the expressions for the ages of; Alex, Joseph and Frank in terms of Y.

Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u
j=y
a=10+j
o=j-3
f=2j
.
frank=f
joseph=o
alex=a
jay=j
.
a=10+y
o=y-3
f=2y


Question 433835: For the following function, C computes a value, where if you add millions of dollars to the value, the result is the cost of implementing a city recycling project when x, as a persent, citizens participate.
C(x)= 1.5x over 100-x
Using this model, determine the cost if 60% of the citizens participate.
Using this model find the % of participation that can be expected if $5 million is spent of this recycling project. Set up and equation and solve.

Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 349483: how to express in simplest form (5aČ-3a+5)+(-4aČ-1)+(15a+11)

Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 271753: monisha is making a quilt followwing a pattern (3x+20) if all the horizantal lines are parallel what is the value of x
Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 166726: The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.
The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?

Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 166723: The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute.
The quality-assurance department found in a sample of 50 customers at the Warren Road MacBurger that the mean waiting time was 2.75 minutes.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?



Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 166722: A processor of carrots cuts the green top off each carrot, washes the carrots, and inserts six to a package. Twenty packages are inserted in a box for shipment. To test the weight of the boxes, a few were checked.
The mean weight was 20.4 pounds, the standard deviation 0.5 pounds. How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?

Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 166721: The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds

1. What is the value of the population mean? What is the best estimate of this value?
2. Explain why we need to use the t distribution. What assumption do you need to make?

1. For a 90 percent confidence interval, what is the value of t?
2. Develop the 90 percent confidence interval for the population mean.
3. Would it be reasonable to conclude that the population mean is 63 pounds?


Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 469561: determine the domain and graph
f(x)= -2 / x2+2x-3

Answer by JBarnum(1826) About Me  (Show Source):
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wrong category please refer to the proper category look through all the recent answers you will find similar problem already answered and worked out for u


Question 222622: what is a now=now rule
Answer by JBarnum(1826) About Me  (Show Source):
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dont know but its not for this category


Question 307803: Times New Roman is a computer font. Are fonts of size 16 and 36 similar? Why?
Answer by JBarnum(1826) About Me  (Show Source):
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yes they are the same font but just a different size....not a math question nor a roman numeral question


Question 552041: Please help me solve this equation: +x%5E2-2x-3=+sqrt%28+4+%29+
Answer by edjones(7311) About Me  (Show Source):
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+x%5E2-2x-3=+sqrt%28+4+%29+
x^2-2x-3=2
x^2-2x =5
x^2-2x+1=6 completing the square
(x-1)^2=6
x-1=+-sqrt(6) square root of each side.
x=1+sqrt(6), x=1-sqrt(6)
.
Ed


Question 550355: the sum of an infinite geometric series with first term a and common ratio r<1 is given by a/1-r. the sum of a given infinte geometric series is 200, and the common ratio is 0.15. What is the second term of this series?
the act answer key has f as the answer but if u could please show work and how it got that, then that would be fantastic. Thanks for ur help and have a great day!
f. 25.5
g. 30
h. 169.85
j. 170
k. 199.85

Answer by stanbon(48517) About Me  (Show Source):
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the sum of an infinite geometric series with first term a and common ratio r<1 is given by a/(1-r).
------------------------------------
the sum of a given infinite geometric series is 200, and the common ratio is 0.15. What is the second term of this series?
Solve:
a/(1-r) = 200
a/0.85 = 200
a = 170 (that is the 1st term)
----
2nd term: a*r = 170*0.15 = 25.5
--------------------------------------
Cheers,
Stan H.
=========================

the act answer key has f as the answer but if u could please show work and how it got that, then that would be fantastic. Thanks for ur help and have a great day!
f. 25.5
g. 30
h. 169.85
j. 170
k. 199.85


Question 550312: Does anyone know what this " / " symbol means? I am entering a contest where one needs to answer a skill testing question and they are always very simple. This is the entire question
(5X8) + (12/3) =

is it 12 divided by 3?

Answer by Alan3354(21580) About Me  (Show Source):
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Does anyone know what this " / " symbol means? I am entering a contest where one needs to answer a skill testing question and they are always very simple. This is the entire question
(5X8) + (12/3) =
is it 12 divided by 3?
---
It is 12 over 3, = 4
12/3 = 12%2F3+=+4
---------
PS Use * for multiply. x is often used for other things.
And, ^ is used for exponents, or powers.
eg, 2^3 = 8.


Question 525854: What are Roman Numerals And what do they do in a Math problem?
Found 2 solutions by Alan3354, geometryworm7271:
Answer by Alan3354(21580) About Me  (Show Source):
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It's an unsuccessful, clumsy and obsolete method of counting, and should be forgotten.
-------------
And what do they do in a Math problem?
I don't know what you mean by that.

Answer by geometryworm7271(30) About Me  (Show Source):
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basically they are the numbers romans used
It goes...
I
II
III
IV
V
VI
VII
VIII
IX
X
Ecetera. so I=1 V=5 X=10 L=50 and it depends on what you are working on


Question 399887: what is the answer in roman numeral form 197,631,204
Answer by Flannery(124) About Me  (Show Source):
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197=CXCVII
631=DCXXXI
204=CCIV
Check: There is a good explanation of this in Stan Gibilisco's "Algebra Know-It-All"


Question 396281: how do u figure out how to do roman numerals
Answer by Flannery(124) About Me  (Show Source):
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There are seven of them to remember.
1=I
5=V
10=X
50=L
100=C
500=D
1000=M
Use as few symbols as possible to build each number.
Example:
I,II,III,IV,V (1,2,3,4,5)
Once you get to 4, you write IV meaning V take away I. You do this instead of writing IIII to save space and avoid confusion. The same rule applies at 9, IX means 10 take away 1. Of course 6,7,8 are VI,VII,VIII, and their form means 5 plus 1, 2, and 3 respectivly.
Example:
X,XX,XXX,XL,L (10,20,30,40,50)
Again, start using the shorter script at 40. XL means 50 take away 10.
XX,XXI,XXII,XXIII,XXIV,XXV,XXVI,XXVII,XXVIII,XXIX are the twentys, again demonstrating the rules for making roman numerals.
Example:
C,CC,CCC,CD,D (100,200,300,400,500)
Symbols in roman numeration change to the "take away" form every time 4 and 9 come up.
My book calls it a "kind of" base five system.
My book shows no symbol for 5000 however.
Build hundreds like this:
534: DXXXIV (D for 500, XXX for 30, IV for 4)
Build thousands like this:
3564: MMMDXLIV (MMM for 3000, D for 500, XL for 40, IV for 4)
I hope that got you at least started.
Source: Stan Gibilisco's "Algebra Know-It-All"


Question 488782: convert to roman numerals.
1343
and
1794
and
2959

Answer by Flannery(124) About Me  (Show Source):
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1343:MCCCXLIII
1794:MDCCXCIV
2959:MMCMLIX
Check:
There's a chart in Stan Gibilisco's "Algebra Know-It-All"


Question 396283: are there free worksheet online that you know i need help
Answer by Flannery(124) About Me  (Show Source):
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try www.analyzemath.com and www.math.com


Question 421922: how can you fine the plane
Answer by Flannery(124) About Me  (Show Source):
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Planes are determined by three points on a flat surface.
A plane is found by solving three linear equations in three variables.
This is also known as solving equations three by three.


Question 284499: write an equation to represent
x increased by 50 is 72
a score of at least 90 on the test is considered an "A"
two times a number n plus 3 is at most 5




Answer by Flannery(124) About Me  (Show Source):
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Something or other plus 50 is 72?
Then x + 50 = 72
Check it by subtracting fifty from both sides.
x = 22
That's if 50 plus 22 is 72.
It is.
OK, I'll do the other two even though there's only supposed to be one problem per question.
A is greater than or equal to 90% questions correct.
You'd have to write A is greater than or equal to 90 using > with a line under it.
2n plus three is at most five. That means its less than or equal to five.
2n + 3 is < or = 5


Question 427871: roman numerals r hard for me to memorize and i have dislexia a bit so i need help becuase im not doing good on my test at all i school and im in the 7th grade.
Answer by Flannery(124) About Me  (Show Source):
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You memorized arabic numerals. Maybe I can help you with the roman ones. I'd need an example of what you are trying to do with them.


Question 458752: how to make my child go easy with roman numerals?
Answer by Flannery(124) About Me  (Show Source):
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Um, may I ask what you mean by "go easy"? The only way to really do them is to memorize them or have a chart in front of you.


Question 499341: What is the number for XIII ?
Answer by oberobic(2302) About Me  (Show Source):

Question 491101: what do the numbers mean when:
x.x=
m.m.m=
a.a.a.a.a=

Found 2 solutions by Alan3354, ptth176:
Answer by Alan3354(21580) About Me  (Show Source):
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what do the numbers mean when:
x%2Ax+=+x%5E2, x times x
m%2Am%2Am+=+m%5E3
a%2Aa%2Aa%2Aa%2Aa+=+a%5E5
-------------
Use the asterisk for multiply

Answer by ptth176(50) About Me  (Show Source):
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x.x=x^2
m.m.m=m^3
a.a.a.a.a=a^5


Question 482341: what is the resolution for V=TTr2h;h
Answer by Alan3354(21580) About Me  (Show Source):
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I'm not sure what that means.
I don't see any Roman numerals, either.


Question 409092: What is the Roman Numeral for 658
Answer by jezjazjan(4) About Me  (Show Source):

Question 453049: What is f and e in Algebra
Answer by ankor@dixie-net.com(12689) About Me  (Show Source):
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f usually means function like f(x) is function of x
e is the symbol for base of natural logs, value about 2.71828


Question 443798: When the points on a graph tend to go upward from left to right, we say they indicate what
Answer by swincher4391(394) About Me  (Show Source):
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Your question is very vague because I don't know what context this question is coming from.
===========
I would say since the points going from left to right are going upward, then you have an highlight%28increasing%29 function.
=============
I hope this is what you were looking for.


Question 418349: what are the roman numerals from 10 to 40
Found 2 solutions by aaronhunter, richard1234:
Answer by aaronhunter(3) About Me  (Show Source):
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Roman numerals are very simple to use and add once you get a hang of how they work. Lets get a quick review: I is equal to 1. V is equal to 5. X is equal to 10. L is equal to 50. C is equal to 100. D is equal to 500 and finally, M is equal to 1000.
So if you were wanting to know all roman numerals from 10 to 40, just add it up.
X is 10. So to get to 11, just add one, right. Thats the symbol, I.
XI is 11. To represent adding put the symbol to the right of the initiator. And so follows the rest.
XII is 12.
XIII is 13.
XIV is 14. To represent a "4" in 14 we see it as 10 + 4, since the symbol for "4" is IV, and 10 + 4 = 14 so does X + IV = XIV.
XV is 15. We do the same thing here. Just add 10 (X) and 5 (V) together.
XVI is 16. From 6 and up we add on "I" as one to continue counting.
XVII is 17.
XVIII is 18.
XIX is 19. Same thing as when we did 14. To say 19, add 10 + 9. And since 9 is represented as IX (you're taking 1 away from 10...9) its quite clear why we'd just put the two together. Remember when adding put the symbol in front of where you started. Just likewise, if you are subtracting put it before the initiator. (E.G. To say 9 we must do 10 - 1, or X - I or IX. When subtracting we only go down one digit. When adding we go up by 3 digits. You'll see this patter as I continue.
XX is 20.
XXI is 21.
XXII is 22.
XXIII is 23.
XXIV is 24.
XXV is 25.
XXVI is 26.
XXVII is 27.
XXVIII is 28.
XXIX is 29.
XXX is 30.
XXXI is 31.
XXXII is 32.
XXXIII is 33.
XXXIV is 34.
XXXV is 35.
XXXVI is 36.
XXXVII is 37.
XXXVIII is 38.
XXXIX is 39.
XL is 40. When we get to 40, its acts just like we were saying 4. Remember to say 4 we take V (5) minus I (1) or IV. So swap out V for L, (50) and to get 40 we subtract X (10) just like we would I (1). 50 - 10 is 40. L - X = 40 ( XL).
XLI is 41.
XLII is 42.
XLIII is 43.
XLIV is 44.
XLV is 45.
XLVI is 46.
XVLII is 47.
XVLIII is 48.
XLIX is 49.
L is 50.
Hope this was helpful.

Answer by richard1234(4789) About Me  (Show Source):
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10 = X
20 = XX
30 = XXX
40 = XL
1 = I
2 = II
3 = III
4 = IV
5 = V
6 = VI
7 = VII
8 = VIII
9 = IX
Combine the tens and units placeholders together to obtain any number. For example, 26 in Roman numerals is XXVI.


Question 417284: What Is The Roman Numeral X?
Answer by richard1234(4789) About Me  (Show Source):

Question 409212: what is the roman number for 143?
Found 2 solutions by richard1234, ankor@dixie-net.com:
Answer by richard1234(4789) About Me  (Show Source):
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CXLIII where C = 100, XL = 40, III = 3

Answer by ankor@dixie-net.com(12689) About Me  (Show Source):
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How about: C X L III


Question 402643: what is XXII?
Answer by algebrahouse.com(914) About Me  (Show Source):
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X = 10
X = 10
I = 1
I = 1
XXII = 22
www.algebrahouse.com


Question 390441: i dont know how too do all this stuff can you please help me
i wanna improve my grades & im in high school
i got f+ every quarter !!!!!!!!!!

Answer by richard1234(4789) About Me  (Show Source):
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Please post a problem or two...I don't know what subject you're struggling in.


Question 386372: DTD caps no. LX
Answer by Alan3354(21580) About Me  (Show Source):

Question 374066: How do you write a google in roman numerals. Can this be done? Also, can you write pi in roman numerals?
Thanks!
Jennifer

Answer by jim_thompson5910(21667) About Me  (Show Source):
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I'm assuming you meant "googol" (the really larger number) and not "google" (the really large company)


Since placing a bar over a roman numeral multiplies that number by itself (ie exponentiation), this means that if you place 50 bars over C, you'll have 100%5E50=1%2A10%5E100, which is a googol.


Older solutions: 1..45, 46..90, 91..135