Question

Mrs. Whitlow gives her dog, Ekon, a weekly allowance to spend on treats. This week, Ekon

received $2.20 in nickels and dimes. If there is a total of 26 coins, how many of each coin did
Ekon get?

(Solve using systems of linear equation)​

Answer 1

8 nickels and 18 dimes

Explanation:

Make a system of equations:

n + d = 26

5n +10d = 220

Solve by elimination by multiplying the top equation by -5. This gives you:

-5n -5d = -130

5n +10d = 220

Then solve to get 5d= 90, then d= 18.

Then plug 18 for d in the equation n + d= 26, so n + 18= 26

n= 8