Mathematics

14 March, 18:09

Solve by using a matrix.

A collection of nickels, dimes and quarters totals $6.00. If there are 52 coins altogether and twice as many dimes as nickels, how many of each kind of coin are there?

a.

q = 5

d = 60

n = 30

c.

q = 15

d = 28

n = 6

b.

q = 35

d = 10

n = 5

d.

q = 10

d = 28

n = 14

+5

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