anonymous
  • anonymous
Can someone help me with a couple of questions? (math)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@nignog9000
anonymous
  • anonymous
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
anonymous
  • anonymous
36/64

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More answers

anonymous
  • anonymous
divide? ?
anonymous
  • anonymous
yes.
anonymous
  • anonymous
0.5625
anonymous
  • anonymous
36/64=9/16 B is the answer.
anonymous
  • anonymous
ok thx can u help me with a couple of more
anonymous
  • anonymous
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
anonymous
  • anonymous
20/12=5/3
UsukiDoll
  • UsukiDoll
@amirreza1870 is on the right track so far :)
anonymous
  • anonymous
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
anonymous
  • anonymous
1200/80=120/8=15 c is correct.
anonymous
  • anonymous
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 ?!
anonymous
  • anonymous
1.2/18=x/27 x=(27*1.2)/18 x=1.8 D is true
anonymous
  • anonymous
Which value is equivalent to 15.2 %written as a decimal? A. 0.0152 B. 0.152 C.15.2 D.1520.0
anonymous
  • anonymous
15.2/100=0.152 B is true
anonymous
  • anonymous
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
UsukiDoll
  • UsukiDoll
hmm... let's try reducing 68/100
UsukiDoll
  • UsukiDoll
68 divided by 4 --------------- 100 divided by 4
UsukiDoll
  • UsukiDoll
should give us 17/25
anonymous
  • anonymous
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
anonymous
  • anonymous
I was thinking c cause 15% is $3 I believe
UsukiDoll
  • UsukiDoll
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 :)
anonymous
  • anonymous
75% of a number is 120. What is 40% of the number? A.36 B.64 C.138 D.225
UsukiDoll
  • UsukiDoll
:/ I'm stuck . It's been forever since I had that question
anonymous
  • anonymous
lol so u don't know it?
UsukiDoll
  • UsukiDoll
no sorry
UsukiDoll
  • UsukiDoll
this problem doesn't appear ever again in higher level math. It's all proofs.
anonymous
  • anonymous
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
anonymous
  • anonymous
so ur not gong to help me now ?!
anonymous
  • anonymous
@LynFran can u help me maybe with a few more?
anonymous
  • anonymous
can u do this one ? ^
anonymous
  • anonymous
@NICK702222
welshfella
  • welshfella
by proportion the number of books he signed for = 14 / 0.35
welshfella
  • welshfella
(35% = 0.35)
welshfella
  • welshfella
just gran your calculator and work out 14 divided by 0.35
welshfella
  • welshfella
* grab!
anonymous
  • anonymous
could u help me with ths one up top bout the books and before that.......@LynFran
UsukiDoll
  • UsukiDoll
-_-. I actually got the previous question.. must be my sleep depriving mode
anonymous
  • anonymous
lol it happens
UsukiDoll
  • UsukiDoll
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
UsukiDoll
  • UsukiDoll
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
anonymous
  • anonymous
40 books
UsukiDoll
  • UsukiDoll
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
anonymous
  • anonymous
ok theres 6 more QS..do u mind helping
UsukiDoll
  • UsukiDoll
I could try... I haven't been sleeping well in weeks.
welshfella
  • welshfella
@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
LynFran
  • LynFran
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
LynFran
  • LynFran
@Ddaddysgirl13
LynFran
  • LynFran
36 is incorrect let me explain
UsukiDoll
  • UsukiDoll
told you it's sleep issues and I haven't done these in ages. >_<
UsukiDoll
  • UsukiDoll
so when I was rechecking, I had this odd number that didn't fit, so there must be another method.
LynFran
  • LynFran
\[\frac{ 75 }{ 100}*160=120\] so we use 160 and find 40% of it \[\frac{ 40 }{ 100 }*160=64\]
UsukiDoll
  • UsukiDoll
where did you get 160?
UsukiDoll
  • UsukiDoll
oh x.x misread the question 75% of a number is 120. 0.75 x n = 120
UsukiDoll
  • UsukiDoll
then divide 0.75 for 160
LynFran
  • LynFran
\[\frac{ 100 }{ 75 }*120=160\]
UsukiDoll
  • UsukiDoll
then 160 x 0.40 = 64
UsukiDoll
  • UsukiDoll
accidentally overlooked the "a number" part. x(
anonymous
  • anonymous
The orginial price of a watch is $109. It was on sale for $100.28.what was the discount rate...this has no answers
UsukiDoll
  • UsukiDoll
try... original price - sale price to figure out the difference
UsukiDoll
  • UsukiDoll
I found the discount rate, but what I did... well I don't recommend it.. it's trial and error.
LynFran
  • LynFran
@UsukiDoll method is correct what answer u get? @Ddaddysgirl13
UsukiDoll
  • UsukiDoll
really?
UsukiDoll
  • UsukiDoll
I used logic a bit to get my rate XD
anonymous
  • anonymous
what is the answer?
UsukiDoll
  • UsukiDoll
the original price is 109 and the sale price is 100.28 what is 109-100.28 ?
UsukiDoll
  • UsukiDoll
then we can figure out whether or not our discount rate is big or small.
LynFran
  • LynFran
@Ddaddysgirl13 do u understand?
UsukiDoll
  • UsukiDoll
*should be big or small. omg I'm messing up at typing XD
LynFran
  • LynFran
ok since you inbox me saying yes do u have any more problems to work here?
anonymous
  • anonymous
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
LynFran
  • LynFran
ok my bad sorry
LynFran
  • LynFran
what is 7/100*139
UsukiDoll
  • UsukiDoll
first we have to have 7% in decimal form 7/100 = 0.07 then multiply 0.07 by 139
anonymous
  • anonymous
9.73
UsukiDoll
  • UsukiDoll
yes!
UsukiDoll
  • UsukiDoll
almost $10 in tax.. D: That's a plate lunch
UsukiDoll
  • UsukiDoll
so 4 more questions now?
LynFran
  • LynFran
the 9.73 would be the amount of tax on the desk ok
anonymous
  • anonymous
hey its izabellla ummm my password I kinda forgot it oops

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