Question 58224
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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Let number of dimes be "d"; value of these dimes 10d cents
Let number of quarters be "q"; value of these quaerters is 25q cents
EQUATION:
value + value >= 3000 cents
10d+25q >=3000
Cheers,
Stan H.