3 years ago

Solve the problem please

Mathematics

2 answers:

VARVARA [1.3K]3 years ago

4 0

Answer: E

Step-by-step explanation:

valentina_108 [34]3 years ago

4 0

Answer:

Step-by-step explanation:

I think the answer is D

Hope this helps you

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Read 2 more answers

Exercise

Maurinko [17]

X - nominator
y - denominator

$\frac{3x}{y+12}=\frac{3}{4}\\
\frac{x+7}{3y}=\frac{1}{2}\\\\
3(y+12)=12x\\
2(x+7)=3y\\\\
3y+36=12x\\
2x+14=3y\\\\
2x+14+36=12x\\
10x=50\\
x=5\\\\
3y=2\cdot5+14\\
3y=10+14\\
3y=24\\
y=8\\\\
\frac{x}{y}=\boxed{\frac{5}{8}}$