(30 gallons x 33 F) + ( A gallons x 184 F) = 155 gallons x 152 F

990 + 184 A = 23,560

184 A = 23,560 - 990

184 A = 22,570

A = 22,570 / 184

A = 122.6 gallons

Proof: (30 x 33) + (122.6 x 184) = 23,548

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