SOLUTION: algebra 1 : system problem - suppose you have 15 coins that total 35 cents. some coins are nickels and the rest are pennies. how many of each do you have?
Algebra ->
Customizable Word Problem Solvers
-> Coins
-> SOLUTION: algebra 1 : system problem - suppose you have 15 coins that total 35 cents. some coins are nickels and the rest are pennies. how many of each do you have?
Log On
Question 809835: algebra 1 : system problem - suppose you have 15 coins that total 35 cents. some coins are nickels and the rest are pennies. how many of each do you have? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! p + n = 15
p + 5n = 35
---
p + n = 15
p = 15 - n
---
p + 5n = 35
15 - n + 5n = 35
4n = 20
---
Answer:
n = 5
p = 10
---
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
