Solving systems by substitution.
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Mathematics, 21.06.2019 18:30
An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?
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You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.
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