Question

In a change jar, Tom has nickels and dimes. The number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. How many dimes are in the jar?

Answer 1

A) n = 2d
B) .05n + .1d = 1.20
from equation A we can substitute
.05 * 2d + .1d = 1.20
.1d + .1d = 1.20
.2d = 1.20
d = 6
nickels = 12

Answer 2

thanks that means alot man dream big and never be anyone but you!

Answer 3

u r welcome

Answer 4

no i mean it means alor man! your my hero!