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Kay [80]
4 years ago
14

Can you help me with this please can you show work please

Mathematics
1 answer:
marshall27 [118]4 years ago
3 0
                                                       1/2 w  +  5  =  12

Subtract  5  from each side:        1/2 w          =    7

Multiply each side by  2 :                    w          =  14
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The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator are both increased by 2
ivolga24 [154]

Question:

The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator are both decreased by 2, the fraction is now equal to  \frac{1}{2}.

If n = the numerator and d = the denominator, which of the following systems of equations could be used to solve the problem?

5n = 3d and n - 2 = 2d - 4

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5n = 3d and 2n – 4 = d – 2

Solution:

Let n be the numerator of the fraction and d be the denominator of the fraction.

Given the numerator and denominator of a fraction are in the ratio of 3 to 5.

This can be written as n : d = 3 : 5.

⇒ \frac{n}{d}= \frac{3}{5} – – – – (1)

Do cross multiplication, we get

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When the numerator and denominator are decreased by 2, the fraction is equal to \frac{1}{2}.

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Hence, 5n = 3d and 2n – 4 = d – 2 can be used to solve the problem.

6 0
3 years ago
Read 2 more answers
PLEASE HELP I NEED THIS ASAP WHOEVER ANSWERS FIRST AND CORRECT WILL BE MARKED AS BRAINLEST ABD BOTH GIVEN 5 STARS AND THANK ALSO
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Answer:

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Step-by-step explanation:

if you add all the numbers together you get 27.6! follow the rule: if its higher then 5 round if its not then dont round. since it was a 6 we round and get 28.

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What is the values of x and y<br><br> I need help Now! Pls!
Verdich [7]
I don’t know about y but x=35 they are diagonal from one another so they will be the same
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