Your piggy bank has a total of 40 coins in it; some are dimes and some are nickels. If you have a total of $3.50, how many dimes do you have?

please help?

Question

Your piggy bank has a total of 40 coins in it; some are dimes and some are nickels. If you have a total of $3.50, how many dimes do you have?

please help?

anonymous · Answer

35 dimes
 i think
just count dimes and you will get  that 35 dimes equals 3m50?

anonymous · Answer

ops  sorry  let em try again

anonymous · Answer

sctarch my first answer
 forgot ths piggy bank had 40 coins

anonymous · Answer

et  = number of dimes
Let  = number of nickels
given:
(1) 
(2)  (in cents)
Multiply both sides of (1) by  and
subtract (1) from (2)

 
(2) 
(1) 


and


There are 30 dimes and 10 nickels

anonymous · Answer

thank you

anonymous · Answer

anytime
did u figure it out?

anonymous · Answer

i did it in my head
the answer is in the question
look

anonymous · Answer

$3,50   =30 dimes plus ten nickels makes?=