SOLUTION: James has pennies, nickles and dimes in his bank. he has more than $1.60 and less than $2.00 in the bank. there are 5 times as many pennies as dimes. there is an equal number of ni
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Question 600034: James has pennies, nickles and dimes in his bank. he has more than $1.60 and less than $2.00 in the bank. there are 5 times as many pennies as dimes. there is an equal number of nickels and dimes. what is the exact amount of money in his bank?
You can put this solution on YOUR website! James has pennies, nickles and dimes in his bank. he has more than $1.60 and less than $2.00 in the bank.
there are 5 times as many pennies as dimes.
p = 5d
:
there is an equal number of nickels and dimes.
n = d
:
what is the exact amount of money in his bank?
Try a total of 1.80
.01p + .05n + .10d = 1.80
in terms of d
.01(5d) + .05d + .10d = 1.80
.05d + .05d + .10d = 1.80
.20d = 1.80
d = 1.8/.2
d = 9 dimes
then
n = 9 nickles
and
p = 5(9) = 45 pennies
:
See if that works: .45 + .45 + .90 = $1.80 can be the exact amt
