SOLUTION: 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.

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Question 39549: 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.
Thank you!

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If D is the number of dimes and Q is the number of quarters, then their values (in cents) would be 10D and 25Q, respectively...
If their total is at least $30, then we can write
10D + 25Q ≥ 3000 ($30 in cents)
where both D ≥ 1 and Q ≥ 1