3 years ago

Mari has 42 coins consisting of nickels, dimes, and

Mathematics

2 answers:

nadya68 [22]3 years ago

8 0

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$

MatroZZZ [7]3 years ago

5 0

Answer:

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

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