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Molodets [167]
3 years ago
6

Which equation can be used to solve the following word problem? Seth has 8 more nickels than dimes, and the total value of his c

oins is $2.35. How many nickels does he have? Let n represent the number of nickels.
Mathematics
1 answer:
9966 [12]3 years ago
6 0

Answer:

Seth has 21 nickels

Step-by-step explanation:

Let n represent the number of nickels. Since Seth has 8 more nickels than dimes, then (n-8) is the number dimes.

Nickel is worth 5 cents and dime is worth 10 cents.  Thus, n nickels are worth 5n cents and (n-8) dimes are worth 10(n-8) cents. The total value of Seth's coins is $2.35 that is 235 cents, then

5n+10(n-8)=235.

Solve this equation:

5n+10n-80=235,\\ \\15n=235+80,\\ \\15n=315,\\ \\n=21.

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