Question 1080288

a coin collection consisting of nickels and quarters has a value of $4.50. The number of quarters is 4 less than twice the number of nickels. Find the number of nickel
<pre>Let number of nickels be N
Then number of quarters = 2N - 4
We then get: .05N + .25(2N - 4) = 4.5
.05N + .5N - 1 = 4.5
.55N = 4.5 + 1
.55N = 5.5
N, or number of nickels = {{{highlight_green(matrix(1,3, 5.5/.55, "=", 10))}}}