A coin collector has $1.85 in dimes and nickels. she has 8 more dimes than nickels. how many nickels does she have?

Question

kropot72 · Answer

Let n be the number of nickels. Now we can write the equation:
5n + 10(n + 8) = 185
Next you need to solve this equation to find the value of n.

pphalke · Answer

5n+10n+80=185? is this right once I solved

pphalke · Answer

kropot? am I right

kropot72 · Answer

Yes, you are right so far.

pphalke · Answer

15n+80=185 is this right once I collect like terms

kropot72 · Answer

Yes, you are still right.

pphalke · Answer

so now I just subtract 80 from both sides

kropot72 · Answer

Yes, that is the next step.

pphalke · Answer

15n=105?

kropot72 · Answer

Yes, good work. Now divide both sides by 15.

pphalke · Answer

7 I get that diving 105/15

kropot72 · Answer

15n/15 = n = 105/15 = 7
So, the number of nickels is 7.

kropot72 · Answer

@pphalke Do you understand the last step?

pphalke · Answer

yes I did