Question

Julio has $2.75 in his pocket in nickels and dimes. The number of dimes is 10 less than twice the number of nickels. Find the number of each type of coin.

Answer 1

Answer:

15 Nickels and 20 Dimes

Step-by-step explanation:

Unit conversion:

1 nickel = 0.05 dollar

1 dime = 0.1 dollar

Let the number of Nickels be 'x'

and the number of dimes be 'y'

Hence, we have

0.05x + 0.1y = 2.75

and,

y = 2x -10

On solving both the equations simultaneously, we get the required answer.