A chihuahua, pitbull, and great dane weigh a combined weight of 439 pounds. The pitbull weighs 3 times as much as the chihuahua. The great dane weighs 10 more pounds than triple the pitbull. How much does the great dane weigh?
Let's be accurate as possible. Think before you answer.
307
Let x represent the weight of the chihuahua.

Pitbull:3x.

Great dane:10 + 3(3x) = 10 + 9x.

Total:x + 3x + 10 + 9x = 439.

13x + 10 = 439.

13x = 429.

x = 33 pounds.

Great dane:10 + 9(33) = 307 pounds.

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The answer: 307