Sam measured the height of a window frame as 5.23 feet, but the actual height was 6 feet. What is the percentage of error in Sam's measurement?
6.79%
7.79%
11.23%
12.83%
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OpenStudy (anonymous):
@Michele_Laino pls help me!!!
OpenStudy (anonymous):
@Michele_Laino @confluxepic @sleepyjess
OpenStudy (anonymous):
medal and fan are included!!!
OpenStudy (anonymous):
@One098 @gIittergoddess @Catlover5925 @brucebaner
OpenStudy (brucebaner):
6- 5.23 0.77
------- = ------ = 12.83%
6 6
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OpenStudy (michele_laino):
please you have to perform this calculus:
\[\frac{ 6-5.23 }{ 5.23 }*100\]
OpenStudy (michele_laino):
because the uncertainty is 6-5.23, and the best value is 5.23
OpenStudy (brucebaner):
witch is 12.83%
OpenStudy (anonymous):
so then the answer is d?
OpenStudy (michele_laino):
I think @brucebaner is right! and I'm wrong!
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OpenStudy (anonymous):
its all right lol :D
OpenStudy (anonymous):
could you guys help a little more??
OpenStudy (michele_laino):
yes I think!
OpenStudy (anonymous):
The table below shows the proportional relationship between the weight of cat food, in ounces, and the number of bags of cat food:
Number of Bags
of Cat Food Number of Ounces
of Cat Food
4 64
5 80
6 96
What is the constant of proportionality?
4
7
16
32
OpenStudy (brucebaner):
thx
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OpenStudy (anonymous):
The table below shows the proportional relationship between the weight of cat food, in ounces, and the number of bags of cat food:
Number of Bags of Cat Food Number of Ounces of Cat Food
4 64
5 80
6 96
What is the constant of proportionality?
a: 4
b: 7
c: 16
d: 32
OpenStudy (anonymous):
ur welcome :3
OpenStudy (michele_laino):
I think that your relationship is linear, so y=mx, where m=16, because, after substitution, we have:
64=16*4,
80=16*5
96=16*6
OpenStudy (anonymous):
so then...
OpenStudy (michele_laino):
then c.
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OpenStudy (anonymous):
ok, thx... do you think that @Michele_Laino is right @brucebaner
OpenStudy (brucebaner):
yes
OpenStudy (michele_laino):
thanks!!!!!@77777jeannie77777
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
ur welcome @Michele_Laino
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OpenStudy (michele_laino):
thanks again!!!!! @77777jeannie77777
OpenStudy (anonymous):
If 4 over 7 of a ton of concrete covers 7 over 8 of a bridge, how many tons of concrete are required to cover the entire bridge?
17/56 ton
3/7 ton
1/2 ton
32/49 ton
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OpenStudy (anonymous):
thx... michele?
OpenStudy (michele_laino):
If to build 7/8 of bridge are necessary 4/7 of concrete, the to build the entire bridege are necessary:
\[\frac{ 8 }{ 7 }*\frac{ 4 }{ 7 }=\frac{ 32 }{ 49 }\]
of concrete
OpenStudy (brucebaner):
its D
OpenStudy (anonymous):
ok, thx u guys!!!!!!!!!!!!!
OpenStudy (michele_laino):
thank you!!!!! @77777jeannie77777
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OpenStudy (anonymous):
OpenStudy (anonymous):
What does the point (1, 14) on the graph represent?
The ratio of napkins to tables is 15:1.
There are 14 napkins for every 1 table.
The ratio of tables to napkins is 15:1.
There are 14 tables for every 1 napkin.
OpenStudy (brucebaner):
i gtg bye
OpenStudy (anonymous):
bye
OpenStudy (anonymous):
b, right???
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OpenStudy (michele_laino):
that's right!
OpenStudy (anonymous):
thx
OpenStudy (anonymous):
Which unit rate is the lowest price per ounce?
Choice A: 6 ounces of raisins for $2.98
Choice B: 13 ounces of raisins for $7.18
Choice A
Choice B
The unit rates are equal.
The unit rates cannot be determined.
OpenStudy (michele_laino):
thanks!
OpenStudy (anonymous):
last one :D
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OpenStudy (michele_laino):
I think A, pecause
2.98/6=0.496
and
7.18/13=0.55
OpenStudy (anonymous):
thx @Michele_Laino!!!!! ur the best lol
OpenStudy (michele_laino):
oops sorry...because....
OpenStudy (anonymous):
:D bye...
OpenStudy (anonymous):
oops what??
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OpenStudy (michele_laino):
I have made a grammar error... not pecause, but because
OpenStudy (michele_laino):
a tyoing error
OpenStudy (michele_laino):
sorry a typing error
OpenStudy (michele_laino):
bye :) @77777jeannie77777
OpenStudy (anonymous):
bye.. and its allright lol
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