Question

X: 1/2=3/4:1/7X / 1/2 = 3/4 / 1/7 ​

Answer 1

Відповідь:   x = 2 5/8 .

Покрокове пояснення:

    Тут записано один приклад двічі є

     x : 1/2 = 3/4 : 1/7 ;  за властивістю пропорції

     x = ( 1/2 * 3/4 ) : 1/7 ;

     x = 3/8 : 1/7 ;

     x = 21/8 ;

    x = 2 5/8 .

Answer 2

To solve this proportion:

(X / 1/2) = (3/4 / 1/7)

You can start by simplifying both sides of the equation.

On the left side, divide X by 1/2, which is the same as multiplying X by 2:

2X = (3/4 / 1/7)

On the right side, you can simplify the fraction 3/4 by dividing both the numerator and denominator by their greatest common divisor, which is 1:

2X = ((3/1) / (4/1)) / (1/7)

2X = (3/1) / (4/1) * (7/1)

2X = (3/4) * 7

Now, multiply 3/4 by 7:

2X = (3/4) * 7 = 21/4

Now, to isolate X, divide both sides of the equation by 2:

X = (21/4) / 2

To divide by 2, you can multiply by 1/2:

X = (21/4) * (1/2)

Now, multiply the numerators and denominators:

X = (21 * 1) / (4 * 2)

X = 21/8

So, the solution to the proportion is:

X = 21/8