ptrlvn01
26.02.2020 •
Mathematics
Susan broke her piggy bank counted 41 coins made up of dimes and nickels. If the
total value of the coin is $3.00, how many dimes and nickels does she have ?
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Ответ:
19 dimes, 22 nickels
Step-by-step explanation:
dimes 'd' 10 cents each
nickel 'n' 5 cents each
10d + 5n = 300
n + d = 41
d = 41 - n
10(41 - n) + 5n = 300
410 - 10n + 5n = 300
-5n = -110
n = 22
d = 41 - n = 41 - 22 = 19
Ответ:
I’m pretty sure you just had to round tax