Questions on Algebra: Divisibility and Prime Numbers answered by real tutors!

Tutors Answer Your Questions about Divisibility and Prime Numbers (FREE)

Question 466012: x to the third power plus three divided by x to the second power minus five in lowest terms
Click here to see answer by sofiyac(695)

Question 470176: ((x)/(3)-(y)/(4))/(y)/(5)-(x)/(6))
I'm trying so so so much to solve that and still can not. Please, can you help me?
Click here to see answer by jim_thompson5910(28715)

Question 470874: If a is the smallest prime number greater than 21 and b is the
largest prime number less than 16, then ab =
A 299
B 323
C 330
D 345
E 351
How do you work this problem?
Click here to see answer by sudhanshu_kmr(1152)

Question 471261: If a is the smallest prime number greater than 21 and b is the
largest prime number less than 16, then ab =
A 299
B 323
C 330
D 345
E 351
How do you work this problem?
Can you please tell me how to work the problem and not just give me the answer?
Click here to see answer by ewatrrr(10682)

Question 470875: What is largest 4 digit num which when divided by 149 leaves remainder 5?
Click here to see answer by richard1234(5390)

Question 472275: Please Expain the steps to divide
a^2-49/a-7

Click here to see answer by stanbon(57967)

Question 473308: How do you factor 25r^2+10r+1
Click here to see answer by jim_thompson5910(28715)

Question 473313: 6x^2+19x+3/x+3
How do u divide this?
Click here to see answer by lwsshak3(6756)

Question 474837: After j candies were given to k kids, each kid has the same number of candies, with four candies remaining. In terms of j and k, how many candies did each kid get?
A) (j/k) + 4
B) (j/k) - 4
C) (j + 4)/k
D) (j - 4)/k
E) (jk)/k + 4
Please explain how I could approach and solve this problem, thanks!
Click here to see answer by richard1234(5390)

Question 474844: When k is divided by 7, the remainder is 4; and when k is divided by 3, the remainder is 0. What is a possible value of k?
A) 32
B) 30
C) 25
D) 18
E) 15
Please explain how I could approach and solve this, thanks!
Click here to see answer by richard1234(5390)

Question 474907: How many integers from -8000 to 8000 are divisible by 4?
Please explain how I could approach and solve this, thanks!
Click here to see answer by richard1234(5390)

Question 474907: How many integers from -8000 to 8000 are divisible by 4?
Please explain how I could approach and solve this, thanks!
Click here to see answer by robertb(4012)

Question 474908: When a positive integer n is divided by 6, the remainder is 2. What is the remainder when 7n is divided by 3?
Please explain how I could approach and solve this, thanks!
Click here to see answer by richard1234(5390)

Question 474828: If m is an odd integer, which expression always represents an odd integer?
A) 3^m - 1
B) (m - 1)/2
C) (2m - 1)^2
D) (m + 1)^2
E) m^2 + 2m + 1
Please explain how I could approach and solve this, thanks!
Click here to see answer by richard1234(5390)

Question 475896: write the number 52 as a product of prime factors
Click here to see answer by richard1234(5390)

Question 476631: weather 287,1369 and 2511 are primes or not?
Click here to see answer by stanbon(57967)

Question 477530: The number 10^2002 + 2 is divisible by A 4 B 5 C 6 D 9 E 10^1001
Click here to see answer by Edwin McCravy(8999)

Question 478396: what is the greatest prime you must consider to test whether 5944 is prime?
Click here to see answer by robertb(4012)

Question 480097: k^2-3k-18 all divided by 4k+12
Click here to see answer by Tatiana_Stebko(1326)

Question 481090: what is prime numbers?
Click here to see answer by Alan3354(31518)

Question 481089: what is prime numbers?
Click here to see answer by Alan3354(31518)

Question 483920: find the greatest five digit number that is divisible by 21?
Click here to see answer by Alan3354(31518)

Question 484804: what are the rules divisible by 7 and it's numbers which can be divisible
Click here to see answer by MathLover1(6812)

Question 484921: what is the LCM of 765,348
Click here to see answer by Tatiana_Stebko(1326)

Question 485410: Solve linear equation:
-3(a+2)+7(-2a-1)=6a-6(3a+5)
Click here to see answer by jainpreeja(10)

Question 486539: 999 +9
Click here to see answer by deborabr(181)

Question 487721: I need help understanding the following;
Find the LCM of the following numbers:
15,9,6
Click here to see answer by Edwin McCravy(8999)

Question 487626: if x is a prime number greater than 5,then what is the remainder when X is divided by 6?
Click here to see answer by richard1234(5390)

Question 488489: i am number that is divisible by ,2,3,4 and 5 and less than 70 who am i
Click here to see answer by stanbon(57967)

Question 489708: Simplify to get a single fraction:
c.(x^2+6x+8)/(x^2-4)
don't really get this bc i got 1 remainder 6x+4, but that's not a single fraction. help please!
Click here to see answer by Gogonati(817)

Question 492753: which of the number2,3,4,5,6,9 and10 will divide 1380 or 3510
Click here to see answer by stanbon(57967)

Question 497962: A rectangular prism has a volume of 480 cm cubed. What is its volume if all of its dimensions are doubled?
Click here to see answer by jorel1380(2518)

Question 498762: Hi can you tell me how to explain 315 divided by 21 in numbers?! thanks
Click here to see answer by Theo(3504)

Question 499104: the sum of three numbers is 99.the first is 10 greater than second and 20 greater than the third.find the largest of the three numbers?
Click here to see answer by oberobic(2304)

Question 494007: I am a three digit number made up of three different numberals and am divisbile by twelve. What am I?
Click here to see answer by Flannery(124)

Question 497882: Find the sum of all the numbers between 2 and 10 that evenly divide 330
Click here to see answer by Flannery(124)

Question 497837: I am not really sure where to ask this question. I am helping my son with his homework and we have this question and I can't answer it...I am drawing a blank.
A three digit number is divided by a one-digit number. The quotient is a two digit number. What can you say about the dividend and the divisor? Thank you kindly.
Click here to see answer by Flannery(124)

Question 489336: When dividing a set of fractions, why do you take the reciprocol of the second fraction and change it to multiplication?
Click here to see answer by Flannery(124)

Question 500504: whqts 40 to the prime factor
Click here to see answer by necia25(1)

Question 501821: what is not greater then 95 and not less then 81 but sum of 15
Click here to see answer by MathLover1(6812)

Question 502321: Find the prime factorization for the number 1560 and write the answer using exponents.
Click here to see answer by ankor@dixie-net.com(15746)

Question 503973: 12/(6x-18)
Click here to see answer by nic0le116(25)

Question 505530: Find the smallest number evenly divisible by each counting number from 1 to 10. Explain in detail explanation.
Click here to see answer by Edwin McCravy(8999)

Question 506783: i am a prime number less than 40. the sum of my digits is 8. who am i?

Click here to see answer by Edwin McCravy(8999)

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