Math

posted by .

i have a couple questions
what are the least common multiples of these number sets (30,65) (66,55,44) (29,58,4)(20,55)(180,252) and 21,16

then i need someone to solve these inequalitys
x-7<-8 3t<15 3w>30 4n+8<24 6y+1<19

2r-8>6 b-5>-2 2y+1<-5 4x-6>-10

thanks in advance

  • Math -

    I will do one for you:
    (66,55,44)

    66 = 11*3*2
    55 = 11*5
    44 = 11*2*2

    So we will need 11*2*2*3*5 = 660

    do the others the same way

    I will do the last of the second batch

    4x-6>-10
    4x > -10 + 6
    4x > -4
    x > -1

    There is only one thing you have to keep in mind.
    If in the last step you either multiply or divide by a negative, the inequality sign has to be reversed.

    e.g.

    -3x > 15
    x < -5

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. MATH

    HOW DO LEAST COMMON MULTIPLES WORK. IT SAYS THERE IS A PROBLEM TO SOLVE BUT MY MOM AND I CAN'T FIND IT. THEY CIRCLED BOTH 2'S AND 3'S. The least common multiple of 2 and 3 is six. The least common multiple of 12 and 6 is 12. # noun: …
  2. Math

    If you have 78 and 104 what is the Least Common Multiples or (LCM)
  3. PLEASE HELP ME MATH

    someone please help i hav posted my questions like 5 times and no one is answering, can someone please solve these inequalitys 6y+1<19 2r-8>6 b-5>-2 2y+1<-5 4x-6>-10
  4. Math

    What Is The Least Common Multiples Of 250 And 30?
  5. math- important

    use the prime factorization of each pair of numbers to identify three common factors and three common multiples. a) 14 and 84 (please show me how to get the 3 common multiples) thank you!!!
  6. Math

    Sets A, B, and C have 6 members in common. Sets A and B have a total of 17 members in common. Sets B and C have a total of 10 members in common. If each member of set B is contained in at least one of the other two sets, how many members …
  7. Math

    What do you call an angle more than 90 degrees and less than 180 degrees?
  8. Math Probability

    We have looked at the probability that two non-mutually exclusive events A or B can happen in this learning experience. We will take it one step further and look at the probability that event A or B or C will happen. The formula is: …
  9. Math

    What are the least common multiples of 8 and 12?
  10. Math

    What are the common and least common multiples of 8&12, 3&5, 7&11, 9&10, 24&36, 20&25, 42&14, 30&12?

More Similar Questions