Question

mariko has 20 nickels and dimes. she has 12 more nickels that dimes. how many dimes does mariko have?

Answer 1

Let, the number of dimes = x
Then, number of nickels = x + 12

It is given that, x+ x+12 = 20
2x = 20 - 12
x = 8/2
x = 4

In short, Mariko have 4 dimes

Hope this helps!