Question 1006932

lisa has $3.80 worth of coins in her wallet, consisting of nickels, dimes, and quarters. she has twice as many nickels as dimes, and 3 times as many quarters as dimes.Write an equation that can be used to find how many of each coin Lisa has
<pre>Let number of dimes be D
Then number of nickels = 2D
Number of quarters: 3D
Equation requested: {{{highlight_green(.1D + .05(2D) + .25(3D) = 3.8)}}}______.1D + .1D + .75D = 3.8_______.95D = 3.8

If you wish to go further, D, or number of dimes = 4