Veronica has $2.80, which consists of only quarters and nickels. If the number of quarters is half the number of nickels, how many coins does she have in total? Select one:

x=0.5y0.25x+0.05y=2.80

Substitute x into

\begin{gathered}0.25(0.5y) + 0.05y = 2.80 \\ 0.175y = 2.80 \\ y = 16\end{gathered}0.25(0.5y)+0.05y=2.800.175y=2.80y=16

\begin{gathered}x = 0.5(16) \\ x = 8\end{gathered}x=0.5(16)x=8

Total coins = 8 + 16 = 24

Hope this helps. - M

so a and d are wrong right off the bat. i'd go for c. hope i !

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