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Kelly has 4 dimes and some nickels. The total value of her coins is $2.25. Write an equation for this.

User Serializer
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2 Answers

4 votes
total = value of nickels(n) + value of dimes
2.25 = 0.05n + 0.40
User AndreaBogazzi
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3 votes

Answer:


40+5x=225

Explanation:

We know that

1 dime = 10 cents

1 nickel = 5 cents

1 dollar = 100 cents

It is given that Kelly has 4 dimes and some nickels.

Let x be the number of nickels.


\text{Total value}=4(10)+x(5)


\text{Total value}=40+5x ... (1)

The total value of her coins is $2.25.

Total value = $2.25 = 225 cents ...(2)

From (1) and (2) we get


40+5x=225


5x=225-40


5x=185


x=37

The number of nickels is 37.

Hence, the required equation is 40+5x=225.

User Mahes
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6.8k points