Question

Найдите неизвестный член пропорции 0.4:3 3/7=x:2.5 срочно нужно заранее спасибо

Answer 1

0,4 : 3 3/7 = х : 2,5,

х = (0,4 * 2,5) / 3 3/7 = 1 : 3 3/7 = 1 : 24/7 = 1 * 7/24 = 7/24 - неизв. член проп

Answer 2

Finding the Unknown Member of a Proportion

To find the unknown member of the proportion 0.4:3 = 3/7:x = 2.5, we can use the concept of cross-multiplication.

Step 1: Cross-Multiplication We can cross-multiply the terms in the proportion to find the value of x.

0.4 * x = 3 * 2.5

Step 2: Solve for x Now, we can solve for x by dividing both sides of the equation by 0.4.

x = (3 * 2.5) / 0.4

Step 3: Calculate the Value of x Let's calculate the value of x using the given equation.

x = (3 * 2.5) / 0.4 x = 7.5 / 0.4 x = 18.75

Answer: The unknown member of the proportion 0.4:3 = 3/7:x = 2.5 is 18.75.