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35 I hope this can help....

The number is 35

If [tex]\frac{2}{5}[/tex] of a number is 14, then we will perform a function of cross multiplication in order to determine the missing number.  

Further Explanation

  • Let the missing number = y
  • To perform a cross multiplication, firstly, we multiply the numerator of first fraction by the denominator of the second fraction.  
  • Secondly, we multiply the denominator of the first fraction by the numerator of the second fraction. Then, the resulting values are divided by each other to get a final numerical value.

Therefore, the missing number (y) will the denominator of the second fraction i.e. [tex]\frac{14}{y}[/tex]. The first fraction is [tex]\frac{2}{5}[/tex].

Thus,

[tex]\frac{2}{5}[/tex] of [tex]\frac{14}{y}[/tex]

[tex]\frac{2}{5}[/tex] = [tex]\frac{14}{y}[/tex]

(2 x y) = (5 x 14)

(2y) = (70)

2y = 70

Since we are looking for value of y, divide both sides by the value beside y

Thus,

[tex]\frac{2y}{2}[/tex] = [tex]\frac{70}{2}[/tex]

y = 35

Therefore, the missing number is 35

LEARN MORE:

  • 2/5 of a number is 14. What's the number https://brainly.com/question/12161407
  • fraction brainly.com/question/6201432

KEYWORDS:

  • 2/5 of a number is 14
  • fraction
  • cross multiplication
  • number
  • denominator
  • numerator