Answer:
Explanation:
d = dimes and q = quarters
0.10d + 0.25q > = 4 (thats greater then or equal to)
Good evening ,
10d + 25q ≥ 400.
d dimes = 10×d cents
q quarters = 25×q cents
$4 = 400 cents
He has at least $4 worth of coins altogether Means 10d + 25q ≥ 400.
:)
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