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3 years ago

Sean answered 1820 quiz questions correctly wire percent of the quiz questions did Sean answer correctly?

Mathematics

2 answers:

S_A_V [24]3 years ago

8 0

Turn into fraction and mutual and divide

Studentka2010 [4]3 years ago

3 0

To find the percentage using a fraction, you need to get the denominator to equal 100. With the fraction 18/20, you can do this by multiplying by 5, which gives you 90/100 which is 90%.
I hope this helps!

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If 1/2 a number is 5 more than 1/7 of that number, what is the number?

Burka [1]

Answer:

Step-by-step explanation:

1/2x = 1/7x + 5

1/2x - 1/7x = 5

7/14x - 2/14x = 5

5/14x = 5

x = 5 * 14/5

x = 14

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2 years ago

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Lunna [17]

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3 years ago

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Ivahew [28]

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Step-by-step explanation:

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3 years ago

HELP RN PLEASEEE for a quiz

sattari [20]

Answer:

Step-by-step explanation:

( $x_{1}$ , $y_{1}$ )

( $x_{2}$ , $y_{2}$ )

m = $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

parallel lines have the same slopes , perpendicular lines have slope which are opposite reciprocals.

~~~~~~~~~~~~~~~

A( 3 , 5 )

B( - 2 , 7 )

$m_{AB}$ = $\frac{7-5}{-2-3}$ = - $\frac{2}{5}$

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D( 6 , 15 )

$m_{CD}$ = $\frac{15-5}{6-10}$ = - $\frac{5}{2}$

The answer is (A) Neither

8 0

2 years ago

Okay so m giving a lot of points so here! (My handwriting is bad lol)

lilavasa [31]

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Hopefully this helps :)

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2 years ago

Read 2 more answers