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11-02-2021
Mathematics

contestada

Donna bought a candy bar for $1.50.
She paid with nickels and dimes.
She used 21 coins in all. How many
nickels (n) and how many dimes (d)
did she use?

Respuesta :

leilanibraden leilanibraden

11-02-2021

Answer:

12 Nickels & 9 Dimes

Step-by-step explanation:

Systems of Equations

0.05x + 0.10y = 1.50

x + y = 21

Find the intercept and you get (12,9)

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