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3 years ago

Factor the following expression completly 2c+4=

Mathematics

1 answer:

AleksandrR [38]3 years ago

7 0

Answer: 2(c+2)

Step-by-step explanation:

Each term had a factor of 2 in common. So to take a two out you divide both terms by 2 and get the answer

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The denominator of a fraction is 4 more than the numerator if both are decreased by 3 the simplified result is 6/7 find original

Hitman42 [59]

<u>Answer:</u>

The denominator of a fraction is 4 more than the numerator. The original fraction is $\frac{27}{31}$

<u>Solution:</u>

Given that

Denominator of fraction is 4 more than the numerator.

Let’s say numerator of fraction be represented by variable x.

So denominator of a faction as it is four more that numerator will be x + 4

Also given if both decreased by three than simplified result is $\frac{6}{7}$

$=>\frac{(x-3)}{((x+4)-3)}=\frac{6}{7}$

Solving above equation for x

=> 7(x – 3 ) = 6 ( x + 1 )

=> 7x – 21 = 6x + 6

=> 7x – 6x = 6 + 21

=> x = 27

Numerator of fraction = x = 27

Denominator of fraction = x + 4 = 27 + 4 = 31

$\text {required fraction}=\frac{\text {numerator}}{\text {denominator}}$

$= \frac{27}{31}$

Hence the original fraction is $\frac{27}{31}$

7 0

4 years ago

The town bought 36 kilograms of wood chips for their playgrounds.

olganol [36]

36 / 9 = 4
Answer : 4 play areas.

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4 years ago

the highest possible score on an entrance exam is 800 points. what scores are between 80% to 90% of the highest possible score?

garik1379 [7]

Answer: 640-720

Step-by-step explanation:

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3 years ago

Find the largest number which divides 870 and 720 exactly

mote1985 [20]

$870=29\times5\times3\times2$
$720=5\times3^2\times2^4$

$\mathrm{gcd}(870,720)=2\times3\times5=30$

4 0

4 years ago

on a number line, point D is located at 9 and point P is located at -11 what is the distance from d to p

Aleks04 [339]

Answer:

Step-by-step explanation:

The distance between two points on the number line is the absolute value of the difference of their coordinates.

coordinate of point D: 9

coordinate of point P: -11

Take the absolute value of their difference. It does not make a difference in which order you subtract the coordinates.

distance = |-11 - 9| = |-20| = 20

Answer: The distance is 20.

4 0

4 years ago