Question

A piggy bank contains Number of quarters as Nickels. If there are no other coins in the piggy bank and it is worth $2.10, how many quarters are there?

Answer 1

7 Quarters
7*25=175
7*5=35
175+35=210

Answer 2

Answer: There are 7 quarters in all.

Explanation:

Let the number of nickels be 'x'.

Let the number of quarters be 'x'.

1 nickel =$ 0.05

1 quarter = $0.25

So, According to question,

`0.05x+0.25x=2.10\\\\0.3x=2.10\\\\x=(2.10)/(0.3)\\\\x=7`

Number of nickels = Number of quarters = 7

Hence, there are 7 quarters in all.