Mathematics, 22.08.2019 08:30 s5177

Every evening jenna empties her pockets and puts her change in a jar. at the end of the week she counts her money. one week she had 40 coins, all of them
dimes and quarters when she added them she had a total of $7.75 let d= number of dimes and q = the number of quarters. how many quarters did she have?

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