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Strike441 [17]
3 years ago
15

A small class has 9 students, 3 of whom are girls and 6 of whom are boys. the teacher is going to choose two of the students at

random. what is the probability that the first student chosen will be a boy and the second will be a girl? write your answer as a fraction in simplest form.
Mathematics
2 answers:
andrey2020 [161]3 years ago
5 0
6/9 + 3/8 =1.04 (25/24)
Anika [276]3 years ago
5 0

actually the answer is 1/4

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A student earned a grade of 80% on a math test that had20 problems. How many problems on this test did the student answer correc
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Answer:

Only 16 problems correct

Step-by-step explanation:

Well I thought that since 80% is  4/5 then I should do 20 divided by 5 which will get me 4 and since I'm doing 4/5 I should go all the way up to 80% of 20 which will get me 16.

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Please choose the option that would best fit the empty space above: Group of answer choices only one optimal solution multiple o
Scrat [10]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

In this question, some of the data is missing, that's why this question  can be defined as follows:

It Includes an objective feature coefficient, its sensitivity ratio is the ratio for values on which the current ideal approach will remain optimal.

When there is Just one perfect solution(optimal solution) then the equation is:

Max \ Z = \$ 5x_1 + \$10x_2\\\\Subject\  to: \\\\8x_1 + 5x_2 \leq  80\\\\2x_1 + 1x_2 \leq 100\\\\x1, x2 \geq 0

When there are Several perfect solutions then the equation is:

Max \ Z = \$ \ 200x_1 + \$ \ 100x_2\\\\ Subject \ to:\\\\8x_1 + 5x_2 \leq 80\\\\2x_1 + 1x_2 \leq 100\\\\x1, x2 \geq 0

When there is also no solution, since it is unlikely then the equation is:

Max \ Z = \$40x_1 + \$10x_2 \\\\Subject \ to:\\\\8x_1 + 5x_2 \leq 80\\\\2x_1 + 1x_2 \geq 100\\\\x_1, x_2 \geq 0

When there is no best solution since it is unbounded then the equation is:

Max \ Z = \$ 30x_1 + \$15x_2 \\\\Subject to:\\\\8x_1 + 5x_2 \geq 80\\\\2x_1 + 1x_2 \geq 100\\\\x_1, x_2 \geq 0\\

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3 years ago
A number divided by the sum of three and four
polet [3.4K]

Answer:

(3t + 4) / (4 - r)

Step-by-step explanation:

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3 years ago
PLease help me quickly
Mnenie [13.5K]

Answer:

3rd option

Step-by-step explanation:

7 0
3 years ago
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