Trish M.
asked 02/05/22
Anh has $2.15 in nickels and dimes. The number of dimes is 1 less than twice the number of nickels. Find the number of nickels.
Raymond B.
answered 02/05/22
Math, microeconomics or criminal justice
D = 2N -1
10D + 5N = 215
10(2N-1) + 5N = 215
20N -10 + 5N = 215
25N = 225
N = 225/25 = 9 nickles
D = 17 dimes
10(17) + 5(9) = 170+45 = 215
Still looking for help? Get the right answer, fast.
OR
Find an Online Tutor Now
Choose an expert and meet online.
No packages or subscriptions, pay only for the time you need.