Problema Solution
Ronan has some nickels and pennies. He has 14 more nickels than pennies. The total value of the coins is $1.30. Which system of liners equations can be used to find the number of nickels
Answer provided by our tutors
let
p = the number of pennies, p>0
n = number of nickles, n>0
1 penny = 1 cent
1 nickle = 5 cents
He has 14 more nickels than pennies:
n = 14 + p
The total value of the coins is $1.30 = 130 cents:
1*p + 5*n = 130
we have the following system of linear equations:
n = 14 + p
1*p + 5*n = 130
by solving we find:
p = 10 pennies
n = 24 nickles
click here to see the step by step solution of the system of equations:
there are 10 pennies and 24 nickles.