You have a total of 21 coins, all nickles and dimes. The total value is $1.70 Which of the following is the system of linear equ
ations that represent this scenario? Let n= the number of nickles and let d= the number of dimes.
1 answer:
You need one equation for the physical nickels and dimes, which total to 21:
n+d=21
Secondly, you need one equation for the numerical value of those nickels and dimes. We know nickels are worth $0.05 and dime are worth $0.10:
.05n+.1d=1.70
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