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anonymous

  • one year ago

you and some friends are going to a museum. Each ticket costs $4.50. a. if n is the number of tickets purchased, write an expression that gives the total cost of buying n tickets

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  1. anonymous
    • one year ago
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    word problem help

  2. ccswims
    • one year ago
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    are they asking you to create your own equation?

  3. anonymous
    • one year ago
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    yeah for A.

  4. anonymous
    • one year ago
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    i got f(n)=4.5n

  5. ccswims
    • one year ago
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    yea, your right, lol. ^.^

  6. anonymous
    • one year ago
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    can you help me with this one?

  7. Ineedhelpfast12
    • one year ago
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    4.5n

  8. anonymous
    • one year ago
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    b) Suppose the total cost for n tickets is $36. What is the total cost if one more ticket is purchased?

  9. ccswims
    • one year ago
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    ok, now just plug in 36 for f(x)

  10. Ineedhelpfast12
    • one year ago
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    36+4.50

  11. ccswims
    • one year ago
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    no

  12. ccswims
    • one year ago
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    36 = 4.5n

  13. anonymous
    • one year ago
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    ok thanks

  14. anonymous
    • one year ago
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    thanks for being helpful. mind if you help me with other ones? @ccswims

  15. ccswims
    • one year ago
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    sure!

  16. anonymous
    • one year ago
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    is 20-2*3^2

  17. anonymous
    • one year ago
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    does it equal 2?

  18. ccswims
    • one year ago
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    yes :)

  19. anonymous
    • one year ago
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    can you show me step by step how to do it

  20. ccswims
    • one year ago
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    ok, use PEMDAS, or order of operations. Parenthesis Exponents Multiply Divide Add Subtract that is the order you go through things if you have a problem you just showed me

  21. ccswims
    • one year ago
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    since we have no parenthesis, but we do have exponents, we would simplify the exponent first

  22. anonymous
    • one year ago
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    ok

  23. ccswims
    • one year ago
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    that would leave us with 20 - 2*9 now

  24. ccswims
    • one year ago
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    then we have multiplication, so we do 2*9 next

  25. ccswims
    • one year ago
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    and then subtract 20 - 18 last

  26. anonymous
    • one year ago
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    ok thx

  27. anonymous
    • one year ago
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    5*2^2 / 2+8 = 18 right?

  28. ccswims
    • one year ago
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    yes

  29. anonymous
    • one year ago
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    if s=4 and t=8 what is (st)^2 / (st^2)

  30. anonymous
    • one year ago
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    @ccswims

  31. ccswims
    • one year ago
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    ok, so according to PEMDAS parenthesis always comes first

  32. ccswims
    • one year ago
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    so with that information, what can you do by yourself?

  33. anonymous
    • one year ago
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    how is the equation set up?

  34. ccswims
    • one year ago
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    (4*2)^2 / (4*2^2)

  35. ccswims
    • one year ago
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    WAIT

  36. ccswims
    • one year ago
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    (4*8)^2 / (4*8^2)

  37. ccswims
    • one year ago
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    for some reason i put 2 instead of 8 in the first expression i gave you

  38. anonymous
    • one year ago
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    oh

  39. ccswims
    • one year ago
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    so work on (4*8)^2 / (4*8^2) and then tell me your answer when you get it

  40. anonymous
    • one year ago
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    1?

  41. anonymous
    • one year ago
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    @ccswims

  42. ccswims
    • one year ago
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    not quite. when you multiply 4*8 you get 32 32^2 / (4*8^2) now, the (4*8^2) part can get tricky because i used to think you need to multiply 4*8 first then use the exponent. but what that parenthesis tells us is that its actually 4 * 8^2 and the 8 is the only one with the exponent. so its actually 32^2/256

  43. ccswims
    • one year ago
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    then its 1024/256 = 4

  44. ccswims
    • one year ago
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    so the answer is 4

  45. anonymous
    • one year ago
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    can you help me with a few more plz

  46. ccswims
    • one year ago
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    yea sure

  47. ccswims
    • one year ago
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    do you get the problem tho?

  48. ccswims
    • one year ago
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    like, do you understand how i got 4?

  49. anonymous
    • one year ago
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    yeah i saw my mistake

  50. ccswims
    • one year ago
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    ok, as long as you understand how to do it :)

  51. anonymous
    • one year ago
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    ok so if s=4 and t=8 what is 2s^2-t^3 / 16

  52. anonymous
    • one year ago
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    just tell me the set up and ill try to get it

  53. ccswims
    • one year ago
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    ok, you you need to plus in 4 for s and 8 for t 2*4^2 - 8^3 / 16

  54. anonymous
    • one year ago
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    ok

  55. anonymous
    • one year ago
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    i messed up i think @ccswims

  56. anonymous
    • one year ago
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    i got 0

  57. ccswims
    • one year ago
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    the answer is actually 1, can you show me your work so i can see where you went wrong?

  58. anonymous
    • one year ago
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    ok

  59. ccswims
    • one year ago
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    WAIT, never mind you got it right

  60. ccswims
    • one year ago
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    i messed up and divided 32 by 32, and you need to subtract 32 and 32

  61. ccswims
    • one year ago
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    which im guessing you did because the answer is 0 and you got 0.

  62. anonymous
    • one year ago
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    2*4^2-8^3 / 16 2*16-512 / 16 32-512 / 16 32-32

  63. ccswims
    • one year ago
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    yes, you got it right

  64. ccswims
    • one year ago
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    it was my mistake. your getting the hang of equations like this really well

  65. anonymous
    • one year ago
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    so is it 1 or 0?

  66. ccswims
    • one year ago
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    it is 0, you were right :)

  67. anonymous
    • one year ago
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    hay!!!!!!! lol

  68. anonymous
    • one year ago
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    thx. can you help me with 4 more?

  69. ccswims
    • one year ago
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    yes :)

  70. anonymous
    • one year ago
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    dang im invisible lmfao

  71. ccswims
    • one year ago
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    lol nah i see you

  72. anonymous
    • one year ago
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    YAY :D

  73. anonymous
    • one year ago
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    i can help

  74. anonymous
    • one year ago
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    ok

  75. anonymous
    • one year ago
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    here is the next one

  76. anonymous
    • one year ago
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    just screenshot it

  77. anonymous
    • one year ago
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    \[2[(8-4)^{5} \div 8]\] \[22+1^{3}+(3^{4}-7^{2})\] ____________________________ 2^3

  78. anonymous
    • one year ago
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    i have no clue

  79. anonymous
    • one year ago
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    i cant screenshot it its paper

  80. anonymous
    • one year ago
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    this problem is confusing

  81. ccswims
    • one year ago
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    are they 2 different problems?

  82. anonymous
    • one year ago
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    is that all one problem?

  83. anonymous
    • one year ago
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    yeah one problem

  84. anonymous
    • one year ago
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    i can skip it if u want

  85. anonymous
    • one year ago
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    no no

  86. anonymous
    • one year ago
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    well the top part is 256

  87. anonymous
    • one year ago
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    ops its only the top one! ha lol

  88. ccswims
    • one year ago
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    yea, just remember what we talked about in the beginning, PEMDAS, use your order of operations

  89. anonymous
    • one year ago
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    the one that starts with 2?

  90. anonymous
    • one year ago
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    yeah

  91. anonymous
    • one year ago
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    the answer is 256

  92. ccswims
    • one year ago
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    and the bottom one is a fraction right?

  93. anonymous
    • one year ago
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    i dont need to do the bottom

  94. anonymous
    • one year ago
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    okie :P

  95. anonymous
    • one year ago
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    so how do i do this?

  96. anonymous
    • one year ago
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    8-4=?

  97. ccswims
    • one year ago
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    wait, i got 704?

  98. anonymous
    • one year ago
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    4

  99. anonymous
    • one year ago
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    4^5

  100. anonymous
    • one year ago
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    i know the answer is 256 because my teacher gave me the answer to this one but he wants me to do the work

  101. anonymous
    • one year ago
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    im showing u how

  102. anonymous
    • one year ago
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    ok so parentheses first?

  103. anonymous
    • one year ago
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    so far we have|dw:1439253355452:dw|

  104. anonymous
    • one year ago
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    then|dw:1439253413305:dw|

  105. anonymous
    • one year ago
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    then what

  106. anonymous
    • one year ago
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    @ccswims

  107. anonymous
    • one year ago
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    i dont know what to do

  108. anonymous
    • one year ago
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    |dw:1439253625948:dw|

  109. anonymous
    • one year ago
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    thats 128

  110. anonymous
    • one year ago
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    ok so what is the absolute value of 128?

  111. anonymous
    • one year ago
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    i dont know

  112. anonymous
    • one year ago
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    128

  113. anonymous
    • one year ago
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    oh 256

  114. ccswims
    • one year ago
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    multiply use your order of operations

  115. anonymous
    • one year ago
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    absolute value is the number but positive

  116. anonymous
    • one year ago
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    ok i need help with 3 more

  117. anonymous
    • one year ago
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    so if you have the absolute value of -128 you would get 128

  118. anonymous
    • one year ago
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    i meant 2 more

  119. anonymous
    • one year ago
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    we didnt finish the steps :S

  120. anonymous
    • one year ago
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    3m^2-n; m=2, n=6

  121. anonymous
    • one year ago
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    @ccswims

  122. anonymous
    • one year ago
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    never mind i got it its 6

  123. anonymous
    • one year ago
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    ok thank you guys for helping so much. i need to go bye

  124. anonymous
    • one year ago
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    bye

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