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2 years ago

13

Which of the ratios below is equivalent to 3:5? Select all that apply.

1 answer:

antiseptic1488 [7]2 years ago

5 0

Answer:

D

Step-by-step explanation:

3:5 is equivalent(equal) to 15:25.

15÷5 and 25÷5 is equal to 3:5.

Hope this helped!

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PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Bond [772]

Answer:

$R = \frac {3ST}{2S + T}$

Step-by-step explanation:

Given the equation;

$\frac {3}{R} - \frac {1}{S} = \frac {2}{T}$

Rearranging the equation, we have;

$\frac {3}{R} = \frac {2}{T} + \frac {1}{S}$

Lowest common multiple (LCM) of S and T is ST.

$\frac {3}{R} = \frac {2S + T}{ST}$

Cross-multiplying, we have;

$3ST = R(2S + T)$

Making R, the subject of formula;

$R = \frac {3ST}{2S + T}$

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3 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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