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Nata [24]
3 years ago
7

Today 15% of all 6th graders Of Bloomingvale Middle School go to the field trip to Museum of Science. How many students go to th

e museum, if total there are 120 sixth graders in the school?
Mathematics
2 answers:
shusha [124]3 years ago
8 0
The answer is 18 because:

15%=15/100

15% of 120=15% * 120=15/100 * 120=1800/100=18
Rufina [12.5K]3 years ago
7 0

\frac{x}{120}  = \frac{15\%}{100\%}  \\ x = i \: dont \: have \: calculator \: \: with \: me
15 divide by 100 times 120
you can do it
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Elenna [48]

Answer:

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Step-by-step explanation:

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3 years ago
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Please help it’s due today
alexandr402 [8]

Answer:

Angle <u>A</u><u> </u>= 15°

use angle properties of triangle to solve this.

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3 years ago
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A welder produces 7 welded assemblies during the first day on a new job, and the seventh assembly takes 45 minutes (unit time).
likoan [24]

Answer:

(a). 72.9%.

(b). 13.6 hr.

Step-by-step explanation:

So, we are given the following data or parameters or information which is going to assist us in solving this question/problem;

=> "A welder produces 7 welded assemblies during the first day on a new job, and the seventh assembly takes 45 minutes (unit time). "

=> The worker produces 10 welded assemblies on the second day, and the 10th assembly on the second day takes 30 minutes"

So, we will be making use of the Crawford learning curve model.

T(7) + 10 = T (17) = 30 min.

T(7) = T1(7)^b = 45.

T(17 ) = T1(17)^b = 30.

(T1) = 45/7^b = 30/17^b.

45/30 = 7^b/17^b = (7/17)^b.

1.5 = (0.41177)^b.

ln 1.5 = b ln 0.41177.

0.40547 = -0.8873 b.

b = - 0.45696.

=> 2^ -0.45696 = 0.7285.

= 72.9%.

(b). T1= 45/7^ - 045696 = 109.5 hr.

V(TT)(17) = 109.5 {(17.51^ - 0.45696 – 0.51^ - 0.45696) / (1 - 0.45696)} .

V(TT) (17) = 109.5 {(4.7317 - 0.6863) / 0.54304} .

= 815.7 min .

= 13.595 hr.

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3 years ago
Find the original price:<br> a house priced at $192030 after its value rose by 3.8%
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The correct answer is 199327.14
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A Triangle on a coordinated plane is translated
motikmotik

Answer:

Translated how?

Step-by-step explanation:

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3 years ago
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