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3 years ago

1 15 3x = 2 Circle the ratio xiy 6:1 1:6 3:2 2:3

Mathematics

1 answer:

katen-ka-za [31]3 years ago

3 0

Question isnt well formatted :

Answer:

1 : 6

Step-by-step explanation:

Given the question :

3x = 1/2y

3x = y/2

Multiply both sides by 2

3x * 2 = y/2 * 2

6x = y

This can be interpreted as :

y = 6 times the value of x

x = y/6

x : y

1 : 6

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mafiozo [28]

The ratios are both identical

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3 years ago

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A parking lot contains 100 cars , k of which happen to be lemons. we select m of these cars

Sunny_sXe [5.5K]

Given that a parking lot contains 100 cars, k of which happen to be lemons.

This is a conditional probability question.

Let event A be that a car is tested and event B be that a car is lemon.

The probability that a car is lemon is given by $\frac{k}{100}$

The probability that a car is tested is given by $\frac{m}{100}$

The probability that a car is lemon and it is tested is given by $\frac{n}{m}$

For a conditional probability, the probablility of event A given event B is given by:

$P(A|B)= \frac{P(A\cap B)}{P(B)}$

Therefore, the probability that a car is lemon, given that it is tested is given by.

$P(lemon|tested)= \frac{P(lemon\, and\, tested)}{P(tested)} \\ \\ = \frac{ \frac{n}{m} }{ \frac{m}{100} } = \frac{n}{m} \times \frac{100}{m} = \frac{100n}{m^2}$

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3 years ago

Math Help Don't Answer If Your Unsure of the answer please?<br> 2nd and 3rd pic is one question

vovangra [49]

If it si proportional
y/x=k or y=kx
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0/0=undefined, ignore
2/3=k
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6/9=2/3=k
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y=kx
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proprtional (2nd and 3rd)
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unit rate is 2.5

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3 years ago

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stepan [7]

Answer:

hi :)

Step-by-step explanation:

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3 years ago

Which of the following shows 9x^2y - 4x + 3y^3x - 2y^2 written in standard form? A. 9x2y - 4x + 3y3x - 2y2 B. 3y3x - 2y2 + 9x2y

nlexa [21]

D. $3 y^{3}x+9 x^{2} y-2 y^{2} -4x$

Take each term and find the degree of the term and then put them in order from highest to lowest:
$y^{3}x=3+1=4$
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$y^{2}=2$
x=1

Remember a letter without an exponent is assumed to be a 1.

Hope that helps.

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3 years ago