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malfutka [58]
3 years ago
13

Solve the proportion 7/5=x/3

Mathematics
2 answers:
kumpel [21]3 years ago
6 0

Start with

\dfrac{7}{5}=\dfrac{x}{3}

Multiply both sides by 3:

\dfrac{21}{5}=x

Recall that 21/5=4.2 to claim the correct answer.

12345 [234]3 years ago
4 0

Answer:

The answer is 21/5 or 5/21.

Step-by-step explanation:

In order to remove the  3  by which the unknown  "x " is divided by, you must multiply by both sides of the equation by  3 , thus isolating  "x ":

Like this:

\frac{7}{5} x 3 = \frac{x}{3} x 3

If both sides of the equation were not multiplied by 3, we would not maintain equality across the equation, thus reaching an incorrect answer.

Therefore, simplifying the above you get:

x= \frac{5}{21}

<em>Hope This Helps!</em>

<em>Have an Amazing Day!! :)</em>

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