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KATRIN_1 [288]
3 years ago
10

A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o

f the class are girls and scored an A on the test. If a student is chosen at random and is found to be a girl, the probability that the student scored an A is _____?
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
8 0

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

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Write an equation to represent the following: Three consecutive integers add up to 11 more than the smallest.
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Answer:


Step-by-step explanation:

First we have to assume the smallest integer.

Let,

the smallest integer is  x

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1/3(6x-15)=1/2(10x-4) solve for x
Tatiana [17]

Simplify 1/3(6x - 15) to 6x - 15/3

6x - 15/3 = 1/2(10x - 4)

Factor out the common term; 3

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Cancel out 3

2x - 5 = 1/2(10x - 4)

Simplify 1/2(10x - 4) to 10x - 4/2

2x - 5 = 10x - 4/2

Factor out the common term; 2

2x - 5 = 2(5x - 2)/2

Cancel out 2

2x - 5 = 5x - 2

Subtract 2x from both sides

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Simplify 5x - 2 - 2x to 3x - 2

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Add 2 to both sides

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3 years ago
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vladimir1956 [14]
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3 years ago
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The base of a right circular cylinder has a diameter of 5.00 inches. Sally measured the circumference of the base cylinder and r
LUCKY_DIMON [66]

Answer:

The percent of error in her measurement is 1.3%

Step-by-step explanation:

we know that

The circumference of a circle is equal to

C=\pi D

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we have

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assume

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substitute

C=(3.14)(5)=15.7\ in ----> This value represent the 100% (theoretical value)

Find the difference between the theoretical value and the measured value

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