I need help plz help meeeee

Mathematics

1 answer:

weeeeeb [17]3 years ago

3 0

This picture is too blurry for me to see the actual problem, but it looks like subtracting fractions, you just subtract the numerator (top number) from the other numbers' numerator, and the denominator stays the same, example:

6/8-2/8=4/8

If your teacher wants it in simplest form you just duvide the numerator and denominator by he same number, example

4/8 divided by 4/4=1/2

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The answer to your question is the last one through the method of competing the square

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The table below shows the number of students who attend various after-school activities. After-School Activities Activity Number

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Y= 4x-9 <br> and y=x-3 <br><br><br> Also using transitive property

Andreyy89

Y = 4x - 9 and y = x-3 so the two right sides (4x-9 and x-3) must be equal

4x-9 = x-3

Let's solve for x

4x-9 = x-3
4x-9+9 = x-3+9 ... add 9 to both sides
4x = x+6
4x-x = x+6-x ... subtract x from both sides
3x = 6
3x/3 = 6/3 ... divide both sides by 3
x = 2

If x = 2, then y is...
y = 4*x - 9 = 4*2-9 = 8-9 = -1
which can also be found by
y = x-3 = 2-3 = -1

So overall x = 2 and y = -1

We have the ordered pair (x,y) = (2,-1)

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A total of 655 persons have multiple job in a city. Of them, 381 are male, 299 are married and 168 are make and married. Find th

Nimfa-mama [501]

Probabilities are used to determine the chances of events

The probability that a randomly selected person with multiple jobs is a male or married is 0.782

<h3>How to determine the probability</h3>

The given parameters are:

Sample size, n = 655

Male = 381

Married = 299

Male and Married = 168

The number of those that are male or married is calculated as:

Male or Married = Male + Married - Male and Married

So, we have:

Male or Married = 381 + 299 - 168

Evaluate

Male or Married = 512

The probability is then calculated as:

p = 512/655

Evaluate

p = 0.782

Hence, the probability that a randomly selected person with multiple jobs is a male or married is 0.782