6th grade Math

9 + 5k = 45 + 2K
the sample shows operation S9 to come up with
5K=36+2k assuming subtract 9 from the 45

sample shows K=12 how did they come up with that?

  1. 👍 0
  2. 👎 0
  3. 👁 132
  1. 9 + 5k = 45 + 2K

    Subtract 9 from both sides.

    5k = 45 - 9 + 2k

    Subtract 2k from both sides.

    5k - 2k = 36

    3k = 36
    k = 36/3
    k = 12

    1. 👍 0
    2. 👎 0
    👩‍🏫
    Ms. Sue
  2. 9 +5k = 45 + 2k
    -2k -2k
    that cancels out now left with
    9 + 3k = 45
    -9 -9 (-9 form both sides left with)
    5k = 36 then divide both sides by 3 and 3 = what

    1. 👍 0
    2. 👎 0
  3. Thank you!

    1. 👍 0
    2. 👎 0
  4. You're welcome.

    1. 👍 0
    2. 👎 0
    👩‍🏫
    Ms. Sue
  5. please i need help !!! :<

    1. 👍 0
    2. 👎 0
  6. HI i have the same problem for math hw and i need help doing it to having trouble finding out answer

    1. 👍 0
    2. 👎 0
  7. This info need a little more explonation or ex. :(

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    A scientist makes the measurements shown in the data table below. She needs to know the total volume of her other samples. which of the following shows the total volume reported with the correct number of digits and units. Samole

  2. Math

    A binary operation * is defined on the set R of real numbers by: a+b+ab where a, b€R .Calculate 5*(-2)*5.Find the identity element of R under the operation*. Determine the inverse under * of a general element a €R

  3. Science

    A scientist observed two rock samples. Sample A was found in the bottom of a dried-up lake and contained fossils. Sample B was found near a volcano and was glassy in appearance. Which statement is MOST LIKELY correct? A. Sample A

  4. History

    Which identifies the covert Armenian mission to assassinate high-ranking Ottoman officials responsible for the Armenian Genocide? Operation Overlord Gallipoli Campaign Operation Nemesis Justice Mission

  1. Algebra I

    Tell whether the set is closed under the operation. If it is not closed give an example that shows that the set is not closed under the operation. 10. Positive irrational numbers; division 11. Negative rational numbers;

  2. Science

    What features would suggest that a sample of scientific writing reflects scientific thinking? (Select all that apply) A. Shows evidence of inductive reasoning B. Makes arguments based on empirical data C. Shows evidence of

  3. history

    What was the name used for the beach landings at Normandy, France, on June 6, 1944? Operation Avalanche Operation Overlord Operation Barbarossa Operation Market Garden a

  4. statistics

    A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.77 hours. Assume that a random sample of 40 mechanics is

  1. stat.

    A sample consists of the following n  6 scores: 2, 7, 4, 6, 4, and 7. a. Compute the mean and standard deviation for the sample. b. Find the z-score for each score in the sample. c. Transform the original sample into a new sample

  2. Statistics

    1) A sample of 49 observations is taken from a normal population. The sample mean is 55 and the sample standard deviation is 10. Determine the 99% confidence interval for the population mean. 2) The Fox TV network is considering

  3. Inorganic Chemistry

    1) Ethylene has a D2h point group. a. List every symmetry operation for ethylene. b. Write a transformation matrix for each operation and describe the effect that each operation has on the molecule’s coordinates in (x,y,z) Thank

  4. probability

    The probability that patient recovers from a delicate heart operation is 0.9. What is the probability that exactly 5 of the next 7 patients having this operation survive?

You can view more similar questions or ask a new question.