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anonymous

  • one year ago

Can someone help me with a couple of questions? (math)

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  1. anonymous
    • one year ago
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    @nignog9000

  2. anonymous
    • one year ago
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    heres the first one Marlin s marble jar had 36 red marbles and 64 blue marbles . what was the ratio of red marbles to blue marbles in the jar? A. 1 : 2 B. 9 :16 C. 2:3 D.3:4

  3. anonymous
    • one year ago
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    36/64

  4. anonymous
    • one year ago
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    divide? ?

  5. anonymous
    • one year ago
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    yes.

  6. anonymous
    • one year ago
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    0.5625

  7. anonymous
    • one year ago
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    36/64=9/16 B is the answer.

  8. anonymous
    • one year ago
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    ok thx can u help me with a couple of more

  9. anonymous
    • one year ago
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    A truck rental company had 32 vehicles on its lot. The company had 20 pickup trucks and the rest were cargo vans. What was the ratio of pickup trucks to cargo vans on the lot A. 3 to 5 B.5 to 8 C.5 to 3 D.8 to 3

  10. anonymous
    • one year ago
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    20/12=5/3

  11. UsukiDoll
    • one year ago
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    @amirreza1870 is on the right track so far :)

  12. anonymous
    • one year ago
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    Which ratio correctly compares 120 cm to 80 mm A. 3 to 20 B.3 to 2 C.15 to 1 D.150 to 1

  13. anonymous
    • one year ago
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    1200/80=120/8=15 c is correct.

  14. anonymous
    • one year ago
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    Wendy paid $1.20 to make 18 copies at the store. At this rate how much would she pay for 27 copies? A. $1.29 B.$1.47 C.$1.50 D. $1.80 -I was thinking B or C ?!

  15. anonymous
    • one year ago
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    1.2/18=x/27 x=(27*1.2)/18 x=1.8 D is true

  16. anonymous
    • one year ago
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    Which value is equivalent to 15.2 %written as a decimal? A. 0.0152 B. 0.152 C.15.2 D.1520.0

  17. anonymous
    • one year ago
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    15.2/100=0.152 B is true

  18. anonymous
    • one year ago
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    Which fraction is equivalent to 68%? A.17/50 B.17/25 C. 34/25 D.680/100 -sorry theres a little bit more of QS

  19. UsukiDoll
    • one year ago
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    hmm... let's try reducing 68/100

  20. UsukiDoll
    • one year ago
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    68 divided by 4 --------------- 100 divided by 4

  21. UsukiDoll
    • one year ago
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    should give us 17/25

  22. anonymous
    • one year ago
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    The cab ride from the airport was $20.00. Lee ann's father tipped the cab driver 15%. What was the total costs of the cab ride? A.$3.00 B.$20.15 C.$23.00 D$35.00

  23. anonymous
    • one year ago
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    I was thinking c cause 15% is $3 I believe

  24. UsukiDoll
    • one year ago
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    let's convert the percentage into decimal 15/100 = 0.15 0.15 x 20.00 = 3 $20.00+3 =23 yes it is C. You are good at this :)

  25. anonymous
    • one year ago
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    75% of a number is 120. What is 40% of the number? A.36 B.64 C.138 D.225

  26. UsukiDoll
    • one year ago
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    :/ I'm stuck . It's been forever since I had that question

  27. anonymous
    • one year ago
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    lol so u don't know it?

  28. UsukiDoll
    • one year ago
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    no sorry

  29. UsukiDoll
    • one year ago
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    this problem doesn't appear ever again in higher level math. It's all proofs.

  30. anonymous
    • one year ago
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    Bentio read 14 books in 3 months, which was 35% of the number of books he had signed up for during school year How many books did benitio sign up to read ? A.40 B.42 C.56 D.105 -ok

  31. anonymous
    • one year ago
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    so ur not gong to help me now ?!

  32. anonymous
    • one year ago
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    @LynFran can u help me maybe with a few more?

  33. anonymous
    • one year ago
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    can u do this one ? ^

  34. anonymous
    • one year ago
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    @NICK702222

  35. welshfella
    • one year ago
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    by proportion the number of books he signed for = 14 / 0.35

  36. welshfella
    • one year ago
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    (35% = 0.35)

  37. welshfella
    • one year ago
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    just gran your calculator and work out 14 divided by 0.35

  38. welshfella
    • one year ago
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    * grab!

  39. anonymous
    • one year ago
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    could u help me with ths one up top bout the books and before that.......@LynFran

  40. UsukiDoll
    • one year ago
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    -_-. I actually got the previous question.. must be my sleep depriving mode

  41. anonymous
    • one year ago
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    lol it happens

  42. UsukiDoll
    • one year ago
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    75% of a number is 120. What is 40% of the number? A.36 B.64 C.138 D.225 we are told that 75% of a number is 120. So we have to figure that part out first

  43. UsukiDoll
    • one year ago
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    0.75 x 120 = 90 so now we have 90 we need 40% of 90 converting from percent to decimal 40/100 = 0.40 0.40 x 90 = 36

  44. anonymous
    • one year ago
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    40 books

  45. UsukiDoll
    • one year ago
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    as for Bentio read 14 books in 3 months, which was 35% of the number of books he had signed up for during school year How many books did benitio sign up to read ? A.40 B.42 C.56 D.105 someone already gave out a clue which was 14/0.35 that's 40

  46. anonymous
    • one year ago
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    ok theres 6 more QS..do u mind helping

  47. UsukiDoll
    • one year ago
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    I could try... I haven't been sleeping well in weeks.

  48. welshfella
    • one year ago
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    @NICK702222 - please dont just give the answer to the question. Guide the questioner to the answer - read Code of Conduct. The poster learns nothing if you just give the answer

  49. LynFran
    • one year ago
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    for this question what was ur answer 75% of a number is 120. What is 40% of the number? A.36 B.64 C.138 D.225

  50. LynFran
    • one year ago
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    @Ddaddysgirl13

  51. LynFran
    • one year ago
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    36 is incorrect let me explain

  52. UsukiDoll
    • one year ago
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    told you it's sleep issues and I haven't done these in ages. >_<

  53. UsukiDoll
    • one year ago
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    so when I was rechecking, I had this odd number that didn't fit, so there must be another method.

  54. LynFran
    • one year ago
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    \[\frac{ 75 }{ 100}*160=120\] so we use 160 and find 40% of it \[\frac{ 40 }{ 100 }*160=64\]

  55. UsukiDoll
    • one year ago
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    where did you get 160?

  56. UsukiDoll
    • one year ago
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    oh x.x misread the question 75% of a number is 120. 0.75 x n = 120

  57. UsukiDoll
    • one year ago
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    then divide 0.75 for 160

  58. LynFran
    • one year ago
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    \[\frac{ 100 }{ 75 }*120=160\]

  59. UsukiDoll
    • one year ago
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    then 160 x 0.40 = 64

  60. UsukiDoll
    • one year ago
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    accidentally overlooked the "a number" part. x(

  61. anonymous
    • one year ago
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    The orginial price of a watch is $109. It was on sale for $100.28.what was the discount rate...this has no answers

  62. UsukiDoll
    • one year ago
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    try... original price - sale price to figure out the difference

  63. UsukiDoll
    • one year ago
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    I found the discount rate, but what I did... well I don't recommend it.. it's trial and error.

  64. LynFran
    • one year ago
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    @UsukiDoll method is correct what answer u get? @Ddaddysgirl13

  65. UsukiDoll
    • one year ago
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    really?

  66. UsukiDoll
    • one year ago
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    I used logic a bit to get my rate XD

  67. anonymous
    • one year ago
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    what is the answer?

  68. UsukiDoll
    • one year ago
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    the original price is 109 and the sale price is 100.28 what is 109-100.28 ?

  69. UsukiDoll
    • one year ago
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    then we can figure out whether or not our discount rate is big or small.

  70. LynFran
    • one year ago
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    @Ddaddysgirl13 do u understand?

  71. UsukiDoll
    • one year ago
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    *should be big or small. omg I'm messing up at typing XD

  72. LynFran
    • one year ago
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    ok since you inbox me saying yes do u have any more problems to work here?

  73. anonymous
    • one year ago
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    A desks costs $139.00. if the sales tax is 7%,how much tax would be on this desk - cause i inboxed doesn't mean you have to be like that, my computer acts stupid cause when i type it wont let me again after i post stuff its easier to message sometimes

  74. LynFran
    • one year ago
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    ok my bad sorry

  75. LynFran
    • one year ago
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    what is 7/100*139

  76. UsukiDoll
    • one year ago
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    first we have to have 7% in decimal form 7/100 = 0.07 then multiply 0.07 by 139

  77. anonymous
    • one year ago
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    9.73

  78. UsukiDoll
    • one year ago
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    yes!

  79. UsukiDoll
    • one year ago
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    almost $10 in tax.. D: That's a plate lunch

  80. UsukiDoll
    • one year ago
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    so 4 more questions now?

  81. LynFran
    • one year ago
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    the 9.73 would be the amount of tax on the desk ok

  82. anonymous
    • one year ago
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    hey its izabellla ummm my password I kinda forgot it oops

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