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natali 33 [55]
2 years ago
4

Of 120 students writing an exam, 100 are expected to pass. The estimated probability that a randomly selected student will fail

the exam is​
Mathematics
1 answer:
monitta2 years ago
6 0

Answer:

1/5 probability of selecting a student that will fail

Step-by-step explanation:

Given,

120-total students

100-pass

Find the amount that will fail,

total students - pass

-substitute in given values

120-100=20

20 students will fail

Proportion to find the probability,

(part/whole)

-substitute for situation

(fail/total students)

-substitute values

20/100

-simplify (÷20)

1/5

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PLZ HELP 235 people are at RSM summer camp. There are 35 more boys than girls, and 70 fewer adults than girls. How many people o
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Answer:

number of girls = 90

Number of boys = 125

Number of adults = 20

Step-by-step explanation:

Total people at the summer camp= 235

Let

number of girls=x

Number of boys = x + 35

Number of adults = x - 70

Total people at the summer camp= number of girls + Number of boys + Number of adults

235 = x + (x+35) + (x - 70)

235 = x + x + 35 + x - 70

235 = 3x - 35

Add 35 to both sides

235 + 35 = 3x

270 = 3x

Divide both sides by 3

x= 270/3

= 90

x = 90

number of girls= x = 90

Number of boys = x + 35

= 90 + 35

= 125

Number of adults = x - 70

= 90 - 70

= 20

Total = 90 + 125 + 20

= 235

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2 years ago
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Since there are 8 of these small cube, we multiply the volume by 8.
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Then, subtracting the volumes will give us an answer of <em>0.448 cm³</em>
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2 years ago
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Answer:

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Answer:

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