The ratio between two quantities is 2 : 7. If the second quantity is 9.9 kg, find the first.
A)
34.65 kg
B)
2.83 kg
C)
2.2 kg
D)
2.92 kg
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Hi again :D
OpenStudy (anonymous):
you there
OpenStudy (anonymous):
Yep.
OpenStudy (anonymous):
Ok
OpenStudy (anonymous):
So whats this one!
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Question is too vague.
OpenStudy (anonymous):
Mean to comfusing
OpenStudy (anonymous):
I think it's A.
OpenStudy (anonymous):
Ratio of first quantity to second quantity is constant
2/7 = y/9.9, where y represents the first quantity
The cross products of proportions
OpenStudy (anonymous):
wait.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
This is what i can help on
OpenStudy (anonymous):
It's b then.
OpenStudy (anonymous):
when i do it it gives me 2.82857
OpenStudy (anonymous):
and alot of wacky numberrs
OpenStudy (anonymous):
Ya, It would be B
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (nubeer):
Ratio
2 : 7
now we make the second side 1 as it's data is given
so divide both sides by 7
2/7 : 1
now for second quantity 9.9 is given
so multiply both sides with 9.9
9.9 * (2/7) : 1 * 9.9
OpenStudy (anonymous):
For the set of ratios, find the two that are proportional.
49 , 7, 45
182 26 160
A)
49/182 and 7/26
B)
7/26 and 45/160
C)
49/182 and 45/160
OpenStudy (anonymous):
How about this one
OpenStudy (anonymous):
I'll let nubeer take over from here.
OpenStudy (anonymous):
NUUU
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
I like you zordoloom O:
OpenStudy (anonymous):
I never got a best response.
OpenStudy (anonymous):
i give you one :D
OpenStudy (anonymous):
See ;D
OpenStudy (nubeer):
lol @zordoloom it's all fine you can explain i was just helping thats all :)
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Thanks nubeer
OpenStudy (anonymous):
Well nbeer can you help me
OpenStudy (anonymous):
For the set of ratios, find the two that are proportional.
49 , 7, 45
182 26 160
A)
49/182 and 7/26
B)
7/26 and 45/160
C)
49/182 and 45/160
OpenStudy (nubeer):
its A option
49/182 = 7/26
OpenStudy (anonymous):
Write a proportion that could be used to solve for the variable s. Then solve.
5 pounds of seed for 2000 square feet
x pounds of seed for 1500 square feet
A)
5/1500 = x/2000; 7.5
B)
5/1500 = x/2000; 8.5
C)
5/2000 = x/1500; 8.5
D)
5/2000 = x/1500; 3.75
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
And this one
OpenStudy (anonymous):
You there
OpenStudy (nubeer):
it's C for this one.
5/2000 = x/1500
x = 3.75
OpenStudy (anonymous):
Yup
OpenStudy (anonymous):
i know this might be to much asking can you help me still?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (nubeer):
yeah sure.
OpenStudy (anonymous):
Thanks!
OpenStudy (anonymous):
Solve the proportion.
y - 4 = y + 2
3 5
A)
12
B)
11
C)
13
D)
52
OpenStudy (anonymous):
Inbewtween
OpenStudy (anonymous):
the the nubmers
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
are a fraction
OpenStudy (anonymous):
i got an idea
OpenStudy (nubeer):
hmm idea? and what is that/
OpenStudy (anonymous):
OpenStudy (anonymous):
There
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
In the attachment is the question
OpenStudy (nubeer):
5(y-4) =3(y+2)
open brackets and multiply
5y-20 = 3y +6
now just find the value of y.. can you?
OpenStudy (anonymous):
Ummm
OpenStudy (anonymous):
is it 3.25
OpenStudy (nubeer):
nop.. can you put steps so i can tell where u made mistake.,
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
i jsut did the other you gave me
OpenStudy (anonymous):
jsut added the like terms
OpenStudy (anonymous):
added the 20 on both sides
OpenStudy (anonymous):
divided it
OpenStudy (anonymous):
gave me 3.5
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (nubeer):
divided by?
OpenStudy (anonymous):
26
OpenStudy (nubeer):
noo..
let me explain
5y-20=3y+6
first add 20 on both sides.
OpenStudy (anonymous):
26
OpenStudy (nubeer):
5y = 3y +26
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok
OpenStudy (nubeer):
now subtract -3y on both sides.
OpenStudy (anonymous):
2y
OpenStudy (nubeer):
yes so
2y = 26
now divide both sides by 2
OpenStudy (anonymous):
oh 13
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
zordoloom is on :D
OpenStudy (nubeer):
yes.. :)
OpenStudy (anonymous):
Julia surveyed 45 students about their preferred lunch. Thirty preferred chicken. Half of those students preferred chicken with barbecue sauce. What percent should Julia report as preferring chicken with barbecue sauce?
A)
33.66%
B)
32.34%
C)
33.33%
D)
31.35%
OpenStudy (anonymous):
Help on dis!
OpenStudy (nubeer):
ok out of 45, 30 like chicken.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
huh?
OpenStudy (nubeer):
and half of 30 like with sauce so 30/2
15 students like with sauce.
OpenStudy (anonymous):
so what percent
OpenStudy (nubeer):
so
(15/45)*100%
OpenStudy (anonymous):
33.3333333333333333
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Thats the answer
OpenStudy (nubeer):
yes.
OpenStudy (anonymous):
Its not on options O:
OpenStudy (anonymous):
Nvm found it
OpenStudy (anonymous):
The actual length of a dust mite is 0.3 millimeters. The model length is 3 cm. What is the scale of the model?
A)
100:1
B)
1: 100
C)
10:1
D)
1:10
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (nubeer):
hmm yes C one.
OpenStudy (anonymous):
And this one
OpenStudy (nubeer):
C for this one too.
OpenStudy (anonymous):
so 10:1
OpenStudy (nubeer):
yes
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
The number of students at Franklin High School increased from 840 to 910 over a 5-year period. What was the percent of change?
A)
9.22%
B)
7.29%
C)
8.33%
D)
6.55%
OpenStudy (anonymous):
And this one?
OpenStudy (nubeer):
(910-840)/840 * 100%
OpenStudy (anonymous):
15.476 and bunch of whacky numbers i got
OpenStudy (nubeer):
doubt that.. u did it wrong.. try again
(910-840)/840 = ?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
0.083333333333333
OpenStudy (anonymous):
C
OpenStudy (anonymous):
Thats what i got
OpenStudy (nubeer):
now this answeer multiply 100
OpenStudy (nubeer):
so it's 8.33
Still Need Help?
Join the QuestionCove community and study together with friends!