Question

Which of the following systems of equations can be used to find the number of dimes, d, and the number of quarters, q, Alexis has? A. {d + q = 5.80{40d + 40q = 5.80B. {d + q = 40{0.25d + 0.10q = 5.80C. {d + q = 5.80{0.10d + 0.25q = 40D. {d + q = 40{0.10d + 0.25q = 5.80

Answer 1

We have the following:

the sum of coins must be equal to 40 and the sum of money from the coins must be equal to $ 5.80

dime = $0.10

quarter = $0.25

$\begin{gathered} d+q=40 \\ 0.10d+0.25q=5.80 \end{gathered}$

Therefore, tne answer is the option D