SOLUTION: kevin has 30 nickles and dimes worth $2.40. how many nickles does he have?
Algebra
->
Coordinate Systems and Linear Equations
->
Linear Equations and Systems Word Problems
-> SOLUTION: kevin has 30 nickles and dimes worth $2.40. how many nickles does he have?
Log On
Linear Solvers
Linear
Practice
Practice
Answers archive
Answers
Word Problems
Word
Lessons
Lessons
In depth
In
Click here to see ALL problems on Linear Equations And Systems Word Problems
Question 347779
:
kevin has 30 nickles and dimes worth $2.40. how many nickles does he have?
Answer by
mananth(16946)
(
Show Source
):
You can
put this solution on YOUR website!
nickels = x
dimes = 30-x
..
Value =240 cents
5x+10(30-x)=240
5x+300-10x=240
transpose terms and numbers
10x-5x=300-240
5x=60
/5
x= 12 nickels
dimes = 30-12=18