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solniwko [45]
2 years ago
11

Suppose 8 out of every 20 students are absent from school less than five days a year. Predict how many students would be from sc

hool less than five days a year out of 400 students
Mathematics
1 answer:
vazorg [7]2 years ago
8 0

Answer:

160

Step-by-step explanation:

With the problem, it's best to put this into a fraction

8/20 of every student will be absent from school less than five days a year, which can then be simplified to 2/5.

There are multiple ways to go about this problem, but my preferred way is to then take 1/5th of 400, which can be done by taking 1*400/5 which equals 80. Since we are asking for 2/5's, just multiply that number by 2, which gives us 160 students.

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Equivalent expression is the expression of two equation when the way of representation of the two equation is different but the result is same.The expressions which are equivalent to the given expression are,

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Given information-

The expression given in the problem is,

\ln x+2 \ln 5 +\ln1

<h3>Equivalent expression-</h3>

Equivalent expression is the expression of two equation when the way of representation of the two equation is different but the result is same.

For given expression,

\ln x+2 \ln 5 +\ln1

As the above function is the function of <em>x. </em>Thus it can be written as,

f(x)=\ln x+2 \ln 5 +\ln1

<h3>Logarithm power rule</h3>

Logarithm power rule states that the exponent of the logarithm function can transfers to front of the logarithm and vice versa. Thus,

f(x)=\ln x+ \ln 5^2 +\ln1\\&#10;f(x)=\ln x+ \ln 25 +\ln1

Now the value of \ln 1 is equal to the zero. Thus,

f(x)=0+\ln 25 +\ln1\\&#10;f(x)=0+\ln 25 +\ln1\\&#10;f(x)=\ln 25 +\ln1\\&#10;f(x)=\ln 25 +0\\&#10;f(x)=\ln 25

Hence the expressions which are equivalent to the given expression are,

  • \ln25+\ln1
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Learn more about the equivalent expression here;

brainly.com/question/10628562

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What single transformación maps ABC onto ABC ?
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a reflection across y-axis then translation of 1 unit right and 2 units up.

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Step-by-step explanation:

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Write an equation With the slope equal to -4/5 and (0,8)
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Answer: y = (-4/5)x + 8

Solution

The equation of line is

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So,

y = (-4/5)x + 8



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