Let n=number of nickels; d=number of dimes
n+d=22 (counting equation treating the coins as objects)
.05n+.10d=1.50 (money equation)
Solve the system of equations using substitution.
From the first equation, n+d=22, we solve for n. So, n=22-d.
Substitute in the second equation to get .05(22-d)+.10d=1.50.
Simplify to get d=8. Then plug into the first equation to get n=14.
So, there are 14 nickels
Madeleine F.
tutor
Hello. Unfortunately, the system will not sort the questions by the student's name. You may want to book a session.
Report
04/08/22
Juliana T.
thank you so much! can you also take a look at some of my other questions.04/07/22