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
Answers: 1
----> equation A
-----> equation B
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 14:30, nunnielangley0
The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.
Answers: 1
You know the right answer?
Joanna has a total of 50 coins in her purse. the coins are either nickels or quarters. the total val...
Questions in other subjects:
Business, 22.10.2019 04:10
Biology, 22.10.2019 04:10
Biology, 22.10.2019 04:10
History, 22.10.2019 04:10
History, 22.10.2019 04:10
Geography, 22.10.2019 04:10
