Mathematics, 20.01.2020 10:31 PearlJam5492
Joanna has a total of 50 coins in her purse. the coins are either nickels or quarters. the total value of the coins is $7.10.
which system of equations can be used to determine the number of nickels, n, and quarters, q, that joanna has in her purse?
a. n+q+50
0.05n+0.25q=7.10
b. n+q=7.10
50n+50q=7.10
c. 0.05n+0.25q=50
n+q=7.10
d. 0.05n+ 0.25q= 7.10
50n+50q=7.10
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