Peggy had four times as many quarters as nickels. She had $2.10 in all. How many nickels and how many quarters did she have? If the variable n represents the number of nickels, then which of the following expressions represents the number of quarters?
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1 quarter = $0.25
1 nickel = $0.05
No. of nickels = n
The expression for the number of quarters = 4n
0.05n + 0.25(4n) = 2.1
1.05n = 2.1
n = 2
the number of nickels = 2
the number of quarters = 4n = 8
1 nickel = $0.05
No. of nickels = n
The expression for the number of quarters = 4n
0.05n + 0.25(4n) = 2.1
1.05n = 2.1
n = 2
the number of nickels = 2
the number of quarters = 4n = 8
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Answer:
Step-by-step explanation:
1 quarter = $0.25
1 nickel = $0.05
No. of nickels = n
The expression for the number of quarters = 4n
0.05n + 0.25(4n) = 2.1
1.05n = 2.1
n = 2
the number of nickels = 2
the number of quarters = 4n = 8
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