A collection of 108 coins containing only quarters and nickels is worth $21.

A table titled Coin Collection showing Number of Coins, Value, and Total. The first row shows Nickels, and has n, 0.05, and 0.05 n. The second row shows, Quarters, and has q, 0.25, and 0.25 q. The third row shows total, and has not entries.

Which value could replace q on the chart?

21
108
21 – n
108 – n

mod note: Please do not give away the answer directly. Low-effort and/or plagiarized answers will be removed.

Question

A collection of 108 coins containing only quarters and nickels is worth $21.

A table titled Coin Collection showing Number of Coins, Value, and Total. The first row shows Nickels, and has n, 0.05, and 0.05 n. The second row shows, Quarters, and has q, 0.25, and 0.25 q. The third row shows total, and has not entries.

Which value could replace q on the chart?

21
108
21 – n
108 – n

mod note: Please do not give away the answer directly. Low-effort and/or plagiarized answers will be removed.

Mercury · Answer

there are  *only* quarters and nickels in the collection

so the number of quarters is simply (total number of coins) - the number of nickels