Question 812315: Maria has a total of 20 nickels and quarters. She has four times as many nickels as quarters. How much money does maria have?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! n + q = 20
n = 4q
---
n + q = 20
4q + q = 20
5q = 20
---
q = 4
n = 16
---
Answer:
0.05n + 0.25q = m
0.05(16) + 0.25(4) = $1.80
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php
|
|
|
