Question

Mari has 42 coins consisting of nickels, dimes, and

Answer 1

N=27
D=80

Explaintion:
20 n in a dollar
10 d in a dollar
So 27=1.35$
27*3=81-1=80=8.00$+1.35$=9.35$

Answer 2

Answer:

n=

d=

q=

Step-by-step explanation:not really good at explaining but by using matrix you can solve this pretty easily if you look into the matrix ima about to show you you can maybe get a picture of it