Question

Anna has 95 coins in her piggy bank. She notices that she only has dimes and pennies. If she has exactly four times as many pennies as dimes, how many pennies are in her piggy bank?

Answer 1

40

Explanation:

Let d be the number of dimes, and p be the number of pennies. We're given:

d + p = 50p = 4d Substitute (2) into (1)d + 4d = 50 Type that equation into our search engine.

We get: d = 10Now substitute this into Equation (2):p = 4(10)p = 40