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Mathematics 18 Online
whypyt:

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 the dimes and quarters.when she added them up,she had a total of $7.75

uicornarts:

Thus, the solution is confirmed: Jenna has 15 dimes and 25 quarters.

uicornarts:

2. The total value of the coins is $7.75, which is equal to 775 cents. The value of dimes is 10 cents each, and the value of quarters is 25 cents each: 10d +25q= 775 Step 1: Solve the first equation for one variable. From the first equation, we can express d in terms of q

whypyt:

true,you are right

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