Question

ive tried but i cant seem to get this one
Your piggy bank has 25 coins in it; some are quarters and some are nickels. You have $3.45. How many nickels do you have?

Answer 1

the total number of coins is distributed in some fashion between quarters and nickels

q + n = 25 is one equation we can use

Answer 2

some particular distribution of qs and ns equates to 3.45

q(.25) + n(.05) = 3.45

Answer 3

now this is a system of 2 equations with 2 unknowns; use whatever your happiest method is to solve

Answer 4

thanks!!

Answer 5

youre welcome, and good luck ;)

Answer 6

lol thanks!