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REY [17]
3 years ago
8

If x:y=3:5 find the ratio 3×+4y:8x +5y​

Mathematics
2 answers:
SashulF [63]3 years ago
6 0

Answer:

29: 49

Step-by-step explanation:

Since x:y= 3:5,

\frac{x}{y}  =  \frac{3}{5}

<em>Cross</em><em> </em><em>multiply</em><em>:</em>

5x = 3y

<em>Divide</em><em> </em><em>by</em><em> </em><em>5</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>:</em>

x =  \frac{3}{5} y

\frac{3x + 4y}{8x + 5y}   \\ =  \frac{3( \frac{3}{5}y) + 4y }{8( \frac{3}{5}y) + 5y }  \\  =  \frac{ \frac{9}{5}y + 4y }{ \frac{24}{5}y + 5y }  \\  =  \frac{9y + 5(4y)}{24y + 5(5y)}  \\  =  \frac{9y + 20y}{24y + 25y}  \\  =  \frac{29y}{49y}  \\  =  \frac{29}{49}

Thus, 3x+4y: 8x+5y= 29: 49.

soldier1979 [14.2K]3 years ago
4 0
I had to try a couple of times to get the answer. The answer is of ratio 29:49

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Select whether the equation has a solution or not.<br> √x = 7
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Answer:

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Step-by-step explanation:

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20 points. Help. No links. Ty :)
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\huge\boxed{Answer\hookleftarrow}

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\huge\boxed{Explanation\hookleftarrow}

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\huge\boxed{Mark -Brainliest\hookleftarrow}

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Step-by-step explanation:

An architect is sketching a blueprint of a patio for a new fence

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