SOLUTION: jack and betty have 28 coins that are nickels and dimes if the value of the coins is $1.95 how many coins of each type do they have

Question 279354: jack and betty have 28 coins that are nickels and dimes if the value of the coins is $1.95 how many coins of each type do they have

Found 2 solutions by josmiceli, JBarnum:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of dimes
Let = number of nickels
given:

----------------

and

and

They have 17 nickels and 11 dimes
check answer:

OK
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
nickel=.05 N= amount of nikels
dime=.10 D= amount of dimes
N+D=28
.05N+.10D=1.95
u can either use substitution or elimination method. im going to use elimination method
multiply this line by -.10 to get:

add these to equations together
divide

N+D=28

check
.05N+.10D=1.95

correct
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