Mr kapoor withdrew 25000 from an atm if he received 150 notes in denomination of 500 and 100 find the number of notes for each denomination

We need to formulate the equation of this problem.

Let x = the number of notes for denomination of 500

      y = the number of notes for denomination of 100

We need to formulate the system of equation,

X + y = 150

500x + 100y = 25,000

Solution:

X = 150 – y

Substitute the value of x to the other equation:

500 (150 – y) + 100y = 25,000

75,000 – 500y + 100y = 25,000

-400y = 25,000 – 75,000

-400y = -50,000

y = 125

x = 150 – 125 (substitute the value of y)

x = 25

Therefore, there are 25 notes for denomination of 500 and 125 notes for denomination of 100.

d

step-by-step explanation:

d

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.