Question

5 : 9 = 15 : x=12 : 7 = 60 : x=пошаговое объяснение пж​

Answer 1

1)

5 : 9 = 15 : x

15 : 5 = 3

(5 × 3) : (9 × 3) = 15 : x

9 × 3 = x

x = 27

1)

12 : 7 = 60 : x

60 : 12 = 5

(12 × 5) : (7 × 5) = 60 : x

7 × 5 = x

x = 35

Answer 2

Looks like you've got a proportion problem there! Let's break it down step by step.

The given proportion is $5:9 = 15:x$.

To find $x$, you can cross-multiply and solve for it.

Cross-multiplying means multiplying the extremes and the means. The extremes are the first and last numbers (5 and x), and the means are the middle numbers (9 and 15).

So, $5 \times x = 9 \times 15$.

Now, solve for $x$:

$5x = 135$

Divide both sides by 5 to isolate $x$:

$x = 27$

So, $15:x = 15:27$.

If you have another proportion to solve ($12:7 = 60:x$), you can follow the same steps. Cross-multiply and solve for $x$. If you'd like, I can help with that too!