SOLUTION: 4. Number problems. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.

Algebra ->  Graphs -> SOLUTION: 4. Number problems. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.      Log On


   

Question 122212: 4. Number problems. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Let d=# of dimes, q=# of quarters, s=sum of your money


Since a dime is 10 cents, it is $0.10 by conversion from cents to dollars. Also a quarter, which is 25 cents, is $0.25


So the sum of your money would be s=0.1d%2B0.25q

Since you have at least $30, this means that the sum of your money is greater than $30 like this:

s%3E30



0.1d%2B0.25q%3E30 Now plug in s=0.1d%2B0.25q



Answer:


So the inequality that represents this problem is


0.1d%2B0.25q%3E30