Math

posted by .

I am a parent of a 10 year old, 5th grader and my hubby and I just can't figure these out to help her. Anyone?? Thanks in advance.

27 = 8k divide k = ??

5a - 3a = 18 a = ??

12r - 4r = 48 r = ??

g = 7(10-3) g = ??

These are finding the unknown number in each equation.
Thanks so much

  • Math -

    27 = 8k
    Divide both sides of the equation by 8.

    27/8 = k
    3.375 = k
    ______________________________________

    5a - 3a = 18
    2a = 18
    a = 9

    _____________________________

    Can you do the rest yourself? We'll be glad to check your answers.

  • Math -

    12r-4r=48r=

  • Math -

    5a-3a=18. What does a equal?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Elementary Math

    Find the missing numbers and landmarks for the set of numbers: 48, 50, 51, 51, 57, 59, 60, 63, 69, ______ , 76, ______ . A Range: _____ B. Mode: __76__ C. Minimum: __48__ D. Maximum __76__ Help - we don’t understand this, or see …
  2. Social Studies

    Curious to know if anyone has a suggestion on how to help 5th grader remember location of Canadian provinces on the map ... Such as a cool acronym perhaps from west to east?
  3. 5th grade math

    I am desperately trying to help my 5th grader figure out how many ways can we make this equation true 24 x 18 = 432 x
  4. 5th grade math

    How do you divide 836 by 22, using compatible numbers?
  5. 5th grade math

    How do you divide 836 by 22, using compatible numbers?
  6. math help please

    if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0
  7. math help please

    if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0
  8. 5th Grade math

    To: bobpursley - how do you teach a 5th grader how to figure out the answer?
  9. math

    Please I just cant figure out how to get the discount, thank you I have a loan made april 5th, face value 8500 length 90 days, simple interest 8%, discount May 3. what is the discount?
  10. Math for 5th graders

    Hi I am a fifth grader I need to learn how ferries wheel in 5th grade math

More Similar Questions