Question

please solve I mark as brainliest
​

Answer 1

a

Page No. :

Date:

Thin Film mre

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lation for reduced carde is about

mm Hg

9

17 1.2

B

c

12

6 700

J 120

Answer 2

Step-by-step explanation:

Given:-

Pair of equivalent rational numbers

To find:-

Find the value of x?

Solution:-

a)

Given equivalent rational numbers=2/3 and 5/x

=> 2/3 = 5/x

On applying cross multiplication then

=> 2x = 5×3

=> 2x = 15

=>x = 15/2

The value of x = 15/2

b)

Given equivalent rational numbers=-3/7 and x/4

=> -3/7= x/4

On applying cross multiplication then

=> 7x = -3×4

=> 7x = -12

=>x = -12/7

The value of x = -12/7

c)

Given equivalent rational numbers=3/5 and x/-25

=> 3/5 = x/-25

On applying cross multiplication then

=> 5x = 3×-25

=> 5x = -75

=>x = -75/5

=>x = -15

The value of x = -15

d)

Given equivalent rational numbers=13/6 and -65/x

=>13/6 = -65/x

On applying cross multiplication then

=> 13x = -65×6

=> 13x = -390

=>x = -390/13

=>x = -30

The value of x = -30

Answers:-

a) The value of x = 15/2

b)The value of x = -12/7

c)The value of x = -15

d)The value of x = -30

Used Concept:-

Equivalent rational numbers :-

Rational numbers having different numerator and denominator but are equal to the same value.