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Leokris [45]
3 years ago
11

A certain fraction has the value 3/4. If its numerator is decreased by 7 and its denominator is increase by 4, the resulting fra

ction has the value 1/2. Find the original fraction​
Mathematics
2 answers:
Alex Ar [27]3 years ago
3 0
27/36 give me brainliest plz
kari74 [83]3 years ago
3 0

Answer:

n = 16 - 7

n = 9

Step-by-step explanation:

If the numerator of a fraction is increased by 3, the fraction becomes 3/4."

Cross multiply

4(n+3) = 3d

4n + 12 = 3d

"If the denominator is decreased by 7, the fraction becomes 1."

Cross multiply

1n = d - 7

n = (d-7)

In the 1st equation replace n with d-7

4(d-7) + 12 = 3d

4d - 28 + 12 = 3d

4d - 3d - 16 = 0

d = 16 is the denominator

then n = 16 - 7

n = 9

9/16 =  the original equation

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Fabric needs to make a dress = 3 1/4
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3 0
3 years ago
What is 1/2 of 22 and 2/3 of 16
Sholpan [36]
1/2 of 22:
1/2 · 22 = 22/2 = 11

2/3 of 16
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6 0
3 years ago
Is 9 a solution to the equation 21=3p-5? Show work
Dmitry_Shevchenko [17]

Answer:

No

Step-by-step explanation:

21 = 3p - 5

<u>Step 1</u> : Add 5 on both sides

21 + 5 = 3p

26 = 3p

3p = 26

<u>Step 2</u> : Divide 3 on both sides

p = 26/3

Hence, the solution of the given equation is 26/3, not 9.

4 0
2 years ago
FREE POINTS!!!!!! Enjoy :33333333
Lelechka [254]

Answer:

ok thanks i guess

Step-by-step explanation:

5 0
3 years ago
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