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anonymous

  • one year ago

help!

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  1. anonymous
    • one year ago
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    @Loser66

  2. anonymous
    • one year ago
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    Craig wants to use an elevator to carry identical packages having the same weight. Each package weighs 4 pounds and Craig weighs 90 pounds. If the elevator can carry a maximum of 330 pounds at a time, which inequality shows the maximum number of packages, n, that Craig can carry with himself in the elevator if he is the only passenger? n ≥ 60 n ≤ 60 n ≤ 236 n ≥ 236

  3. anonymous
    • one year ago
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    @Loser66

  4. anonymous
    • one year ago
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    @Vocaloid

  5. lfreeman1285
    • one year ago
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    The maximum amount of weight allowed in the elevator is 330. This means that \[4x+90\le330\] Where x is the amount of packages. All you have to do is solve for x, and there's your answer!

  6. anonymous
    • one year ago
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    x=60?

  7. anonymous
    • one year ago
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    b?

  8. lfreeman1285
    • one year ago
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    Yes

  9. anonymous
    • one year ago
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    @Vocaloid is b correct?

  10. Vocaloid
    • one year ago
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    yes

  11. anonymous
    • one year ago
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    ok :)

  12. anonymous
    • one year ago
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    What is the first step needed to solve 3 over 4 multiplied by x minus 3 equals negative 18? Add 3 to both sides Subtract 18 from both sides Multiply both sides by 3 Divide both sides by 4

  13. anonymous
    • one year ago
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    a?

  14. Vocaloid
    • one year ago
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    hmm,,, (3/4)x - 3 = -18 I guess I would add 3 to both sides first to get x by itself

  15. anonymous
    • one year ago
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    okay :)

  16. anonymous
    • one year ago
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    Brent has two barcode printing machines. Each machine can print 25 barcodes per minute. On day 1, only the first machine was used, and it printed 95 barcodes. On the following day, the first machine printed for x minutes and the second machine printed for y minutes. Which expression shows the total number of barcodes printed by both machines during these two days? 95 + 25x + 25y 120x + 25y 25 + 95x + y 95x + 50y

  17. anonymous
    • one year ago
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    A?

  18. anonymous
    • one year ago
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    @Vocaloid

  19. Vocaloid
    • one year ago
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    number of barcodes printed on day 1 + (number of barcodes per minute)x + (number of barcodes per minute)y

  20. LynFran
    • one year ago
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    http://openstudy.com/study#/updates/55e3a8fce4b03567e11074e8

  21. anonymous
    • one year ago
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    right A :)

  22. anonymous
    • one year ago
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    Select True or False. The expression 3x − 4(2x − 5) is equivalent to the expression 20 − 5x. True False

  23. LynFran
    • one year ago
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    sorry but please click on the lnk below @Vocaloid http://openstudy.com/study#/updates/55e3a8fce4b03567e11074e8

  24. Vocaloid
    • one year ago
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    well, start by distributing the 4

  25. anonymous
    • one year ago
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    -5x + 20, so false ?

  26. Vocaloid
    • one year ago
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    yup, that's correct, good job

  27. anonymous
    • one year ago
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    Bruno bought 96 pounds of sugar for his bakery. Every day he used the same amount of sugar to make bakery items. After 10 days, Bruno was left with 15.2 pounds of sugar. On average, how many pounds of sugar did Bruno use each day? 5.60 pounds 8.08 pounds 11.12 pounds 18.46 pounds

  28. Vocaloid
    • one year ago
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    well, he started off with 96 pounds and he had 15.2 left, how much did he use up?

  29. anonymous
    • one year ago
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    80.8

  30. anonymous
    • one year ago
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    b?

  31. Vocaloid
    • one year ago
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    yup

  32. anonymous
    • one year ago
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    The sum of three consecutive numbers is 84. What is the largest of these numbers? 26 27 28 29

  33. Vocaloid
    • one year ago
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    "consecutive" means three numbers that increase by 1 each time, so we have x x + 1 x + 1 + 1 add them together, and set them equal to 84 x + x + 1 + x + 1 + 1 = 84 first step is to solve for x

  34. anonymous
    • one year ago
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    x=27

  35. Vocaloid
    • one year ago
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    right, now find x + 1 + 1

  36. anonymous
    • one year ago
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    x + 2

  37. Vocaloid
    • one year ago
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    now plug in your x value

  38. Vocaloid
    • one year ago
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    x = 27, x + 2 = ?

  39. anonymous
    • one year ago
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    um help me with this one

  40. Vocaloid
    • one year ago
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    well, ok, you solved the equation I gave you and got x = 27. this means we can replace "x" with "27" whenever we see x so, if x = 27, then x + 2 = ?

  41. anonymous
    • one year ago
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    oh so... 27 = 27 and 27 + 2

  42. Vocaloid
    • one year ago
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    yup, so x + 2 = 27 + 2 = 29, and 29 is your answer

  43. anonymous
    • one year ago
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    oh i get it ..okie dokie :))

  44. anonymous
    • one year ago
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    Lara has violet and blue pansies in groups of 5. She has x groups of violet pansies and y groups of blue pansies. Which expression shows the total number of pansies that Lara has? 5x + y 5x + 5y x + 5y x over 5 + y over 5

  45. Vocaloid
    • one year ago
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    well, we'll use multiplication there are 5 pansies in 1 group of pansies, so there are 5x pansies in 5 groups of pansies

  46. anonymous
    • one year ago
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    ok

  47. anonymous
    • one year ago
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    soo??

  48. Vocaloid
    • one year ago
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    there are x groups of violet pansies, and y groups of blue pansies, and 5 pansies in each group, giving us 5x and 5y... now add them...

  49. anonymous
    • one year ago
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    a?

  50. Vocaloid
    • one year ago
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    nope, remember, 5x and 5y...

  51. anonymous
    • one year ago
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    b

  52. Vocaloid
    • one year ago
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    correct

  53. anonymous
    • one year ago
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    Which unit rate is the lowest price per ounce? Choice A: 6 ounces of raisins for $1.49 Choice B: 13 ounces of raisins for $3.59 Choice A Choice B The unit rates are equal. The unit rates cannot be determined.

  54. Vocaloid
    • one year ago
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    divide cost by number of ounces, then see whether choice A or B is bigger

  55. anonymous
    • one year ago
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    A is bigger

  56. anonymous
    • one year ago
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  57. Vocaloid
    • one year ago
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    oh wait, for the other problem, it wants the smaller one, so it would be choice B

  58. anonymous
    • one year ago
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    oh okay! :)

  59. Vocaloid
    • one year ago
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    anyway, for the graph problem, a proportional relationship just means it will be a straight line starting from (0,0)

  60. anonymous
    • one year ago
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    c?

  61. anonymous
    • one year ago
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    c?

  62. Vocaloid
    • one year ago
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    yeah, c, sorry I got distracted a bit

  63. anonymous
    • one year ago
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    its okay.. lol :)

  64. anonymous
    • one year ago
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  65. anonymous
    • one year ago
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    @Vocaloid

  66. Vocaloid
    • one year ago
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    for each of the rows, calculate how much 1 cupcake costs if the cost is the same each time, then the relationship is proportional

  67. anonymous
    • one year ago
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    how do i calculate

  68. Vocaloid
    • one year ago
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    well, just look at row 1 if 3 cupcakes cost 12, then how much does 1 cost?

  69. anonymous
    • one year ago
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    12

  70. anonymous
    • one year ago
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    oh i mean $4

  71. Vocaloid
    • one year ago
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    right, now keep going for each of the other rows in the table

  72. anonymous
    • one year ago
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    they are all 4

  73. Vocaloid
    • one year ago
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    good, that means the relationship is proportional, and the price of the cupcakes is 4 times the number of cupcakes

  74. Vocaloid
    • one year ago
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    now look at the answer choices

  75. anonymous
    • one year ago
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    A

  76. Vocaloid
    • one year ago
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    nope, read carefully

  77. Vocaloid
    • one year ago
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    the relationship is proportional, and the price of the cupcakes is 4 times the number of cupcakes

  78. anonymous
    • one year ago
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    b

  79. Vocaloid
    • one year ago
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    right

  80. anonymous
    • one year ago
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  81. Vocaloid
    • one year ago
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    well, x-axis = number of tables and y-axis = number of chairs, so what do you think (1,4) means?

  82. anonymous
    • one year ago
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    A?

  83. Vocaloid
    • one year ago
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    correct

  84. anonymous
    • one year ago
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  85. anonymous
    • one year ago
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    @Vocaloid

  86. Vocaloid
    • one year ago
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    well, read the graph, and tell em how many cups of cherry juice there are for 1 cup of lime soda

  87. anonymous
    • one year ago
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    c?

  88. Vocaloid
    • one year ago
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    nope, just look at the graph and tell me how many cups of cherry juice for ONE cup of lime soda

  89. anonymous
    • one year ago
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    4

  90. Vocaloid
    • one year ago
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    read the graph carefully...

  91. Vocaloid
    • one year ago
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    lemon-lime soda = 1 cherry juice = ?

  92. anonymous
    • one year ago
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    i dont get it :(

  93. Vocaloid
    • one year ago
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    read the graph carefully when lemon-soda = 1, what does cherry juice = ?

  94. Vocaloid
    • one year ago
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    lemon soda is the x, cherry juice is y...

  95. anonymous
    • one year ago
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    5

  96. Vocaloid
    • one year ago
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    yup, so that makes our ratio 5:1

  97. anonymous
    • one year ago
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    okay!

  98. anonymous
    • one year ago
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  99. Vocaloid
    • one year ago
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    easy, just figure out how many ounces are in one bag

  100. anonymous
    • one year ago
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    @Vocaloid A?

  101. Vocaloid
    • one year ago
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    great, yes

  102. anonymous
    • one year ago
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    The price of pears at a farm is $1.41 per pound. Which equation can be used to determine c, the total price of n pounds of pears? c equals 1.41 over n c = 1.41 + n c = 1.41 − n c = 1.41n

  103. anonymous
    • one year ago
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    @Vocaloid

  104. Vocaloid
    • one year ago
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    hint: the answer involves multiplication

  105. anonymous
    • one year ago
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    D?

  106. Vocaloid
    • one year ago
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    yes

  107. anonymous
    • one year ago
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  108. anonymous
    • one year ago
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    @Vocaloid

  109. Vocaloid
    • one year ago
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    first find the price of 1 hat using the graph

  110. anonymous
    • one year ago
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    13

  111. anonymous
    • one year ago
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    c?

  112. Vocaloid
    • one year ago
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    nope... the graph tells us that 2 hats cost 13.00... so 1 hat costs?

  113. anonymous
    • one year ago
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    6.5?

  114. anonymous
    • one year ago
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    @Vocaloid

  115. Vocaloid
    • one year ago
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    right, so our answer is...?

  116. Vocaloid
    • one year ago
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    I have to take care of some business right now, I'll try to get back later if I can @Luigi0210 @triciaal

  117. anonymous
    • one year ago
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    b? @Vocaloid

  118. anonymous
    • one year ago
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    @Michele_Laino

  119. triciaal
    • one year ago
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    ok let me start reading really don't like long threads

  120. triciaal
    • one year ago
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    can you do a new question then tag me?

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