jennabroussard2006 jennabroussard2006

11-02-2021
Mathematics

contestada

Wilma has 28 coins, all nickels, and dimes worth $2.05. How many nickels does she have?

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kh144412 kh144412

11-02-2021

Answer:

15 nickels and 13 dimes

Step-by-step explanation:

5n + 10d = 205 cents

n + d = 28

n = 28-d

5(28-d) +10d = 205

140 -5d + 10d = 205

5d = 65

d = 13

n = 28-d = 28-13 = 15

5n = 5(15) = 75

10d = 10(13) = 130

75+130=205

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nyny7648 nyny7648

11-02-2021

15 nickels and 13 dimes

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