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scoray [572]
4 years ago
10

Half of a class took Form A of a test, and half took Form B. Of the students who took form B, 39% passed. What is the probabilit

y that a randomly chosen student took Form B and did not pass?
Mathematics
1 answer:
mr Goodwill [35]4 years ago
5 0

Answer:

NOT VERY LIKELY

Step-by-step explanation:

• 1/2 OF THE CLASS TOOK FORM A

• 1/2 = 50%

• THE CHANCE CANNOT BE OVER 50%

• 39% OUT OF 50% PASSED

• 50% - 39% = 11%

• THE ANSWER IS NOT VERY LIKELY

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I am a rectangle, and my area is 80 square inches. My width is 2 inches shorter than my length. What is my perimeter?
pshichka [43]
Area=l*b=l*(l-2)=80(given)

so, l^2 - 2l =80
   l^2 - 2l - 80=0
   l=10 or -8

l=10,b=10-2=8
perimeter=2(l+b)=2(18)=36
6 0
4 years ago
Read 2 more answers
A factory buys 10% of its components from suppliers B and the rest from supplier C. It is known that 6% of the components it buy
Aleks [24]

Answer:

The percentage of the components bought from supplier C that are faulty = 88%

Complete Question:

A factory buys 10% of its components from supplier A, 30% from supplier B,and the rest from supplier C. it is known that 6% of the components it buys are faulty. of the components bought from supplier A, 9% are faulty and of the components bought from supplier B, 3% are faulty.

find the percentage of the components bought from supplier C that are faulty ?

Step-by-step explanation:

Let x be the total components bought by the factory

Components supplied by A = 10% of x

Components supplied by B = 30% of x

The rest supplied by C:

Percentage supplied by C = 100-(30+10) = 100-40 = 60%

Components supplied by C = 60% of x

% of all faulty components = 6%

Amount of faulty component = 6% of x

faulty components from A= 9%

Amount of faulty component from A= 9% × (6% of x) = 0.0054x

faulty components from B= 3%

Amount of faulty component from A= 3% × (6% of x) = 0.0018x

Amount of faulty component from C = (6% of x) - (0.0054x+0.0018x)

= 0.06x - 0.0072x

= 0.0528x

Let the percentage of the components bought from supplier C that are faulty = y%

y% × 6% of x = 0.0528x

y% × 0.06x = 0.0528x

y% = 0.0528x/0.06x

y% = 0.88 = 88%

The percentage of the components bought from supplier C that are faulty = 88%

3 0
4 years ago
Solve 7x + 12 = 3x <br><br>Solve for x​
Maslowich

Answer:

= − 3

thats the asnwer

7 0
3 years ago
Read 2 more answers
In the United States, the average public school teacher currently earns an annual salary near $55,202. Reported national average
earnstyle [38]
For the first part 55,202+41,807+31,367+15,970+8,626+4,995 and that equals 157967$ now you have to divide that amounts by the total number of salaries so 157967 divided by 6 that equals 26327.83$
6 0
3 years ago
The first four terms of a sequence are shown below:
erma4kov [3.2K]

9514 1404 393

Answer:

  B) f(1)=7, f(n+1)= f(n)-3; for n >= 1

Step-by-step explanation:

The first term of the sequence is 7 and the next (4) is found by adding -3 to that: 4 = 7-3. This is described in answer choice B.

6 0
3 years ago
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