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Katie gave Melanie $2.45 in dimes and nickels. If 10 coins were dimes, how many coins were nickels? Which equation models this problem?


2.45 • 10 = 5n

0.05n + 2.45d = 10

10 • 0.10 + 0.05n = 2.45

0.05 • 10 + 0.1 • d = 2.45

Respuesta :

SperenZeemai
.05n+.10(10)=2.45
.05n+1=2.45
2.45-1=1.45
.05n=1.45
.05(29)=1.45
.05(29)+10(10)=2.45

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